MHT CET (PCB) 2025 9th April Morning Shift
Paper was held on Wed, Apr 9, 2025 3:30 AM
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Biology

1

Any foreign substance invading body and capable of stimulating an immune response is _________ .

2

Identify the labels ' X ', ${ }^{\prime} \mathrm{Y}^{\prime}$ and ' Z ' in following figure.

MHT CET (PCB) 2025 9th April Morning Shift Biology - Morphology of Flowering Plants Question 1 English
3

Which of the following statements are correct regarding chromosomal basis of sex determination?

i. The mechanism of sex determination in insect is XX - XO type.

ii. In honey-bee, haplo-diploid type of sex determination is observed.

iii. Human males have homomorphic sex chromosomes.

iv. Human females have heteromorphic sex chromosomes.

v. Chromosomal mechanism of sex determination in birds is ZW-ZZ type.

4

Which of the following is INCORRECT in case of severe haemorrhage?

5

Select the INCORRECT statements.

i. The rate of formation of $\mathrm{H}_2 \mathrm{CO}_3$ is slower in RBCs and faster in plasma.

ii. Dissociation of $\mathrm{H}_2 \mathrm{CO}_3$ into $\mathrm{H}^{+}$and $\mathrm{HCO}_3^{-}$ takes place due to carbonic anhydrase.

iii. The carbonic anhydrase is present in leucocytes,

iv. The prosthetic group of carbonic anhydrase is Mn .

Select the correct option.

6

Following table shows ABO blood group in man. Observe carefully and identify 'P', 'Q' and ' R '.

MHT CET (PCB) 2025 9th April Morning Shift Biology - Principles of Inheritance and Variation Question 2 English
7

In the above logistic growth curve of population, identify ' $A$ ', ' $B$ ' and ' $C$ '.

MHT CET (PCB) 2025 9th April Morning Shift Biology - Organisms and Populations Question 1 English
8

Given below are two statements.

Statement I - Wall of the left ventricle is more muscular and about three times thicker than that of the right ventricle.

Statement II - Columnae carneae are present in the wall of atria as well as ventricles.

In the light of above statements, select the correct option given below:

9

Following changes occur during the successive seral stages of ecological succession EXCEPT _______

10

What is the time duration required for completion of one PCR Cycle?

11

Gland which was considered vestigial but later found to produce melatonin is _________

12

Stomatal transpiration takes place during day time in the following plants EXCEPT __________

13

Given below are two statements.

Statement I - Defective development of foetus is examined by amniocentesis.

Statement II - Defective foetus can be terminated after 20 weeks of pregnancy.

In the light of above statements, select the correct option given below:

14

A graph shows effect of substrate concentration on enzyme activity. In this graph ' Y ' axis represents.

MHT CET (PCB) 2025 9th April Morning Shift Biology - Biomolecules Question 1 English
15

When a biotic agent is bat, the pollination is called

16

In Glycolysis, which one of the following conversion shows ATP formation?

17

Match the Columns I, II and III based an excretion.

Column I
(Part of Nephron)
Column II
(Type of cells)
Column III
(Function)
a. Bownman's capsule (i) Squamous epithelium p. passage of filterate
b. Neck of nephron (ii) Cuboidal epithelium q. selective reabsorption
c. Proximal convoluted tubule (iii) Ciliated epithelium r. filtration of blood
18

Which type of mutation causes sickle cell anaemia?

19

Which of the following is NOT an acrosomal reaction?

20
Growth of the pollen tube in ovule is guided by the secretions of
21

Which of the following is NOT the function of erythrocytes?

22

If dark period is interrupted by a flash of red light of 660 nm , then SDP will not flower. But if it is immediately followed by _________ then SDP will flower.

23

The purposeful manipulation in the heredity of crops and the production of new superior varieties of existing crop plants is called ___________

24

    The quantity of CO and hydrocarbons in the exhaust of a motor vehicle can be reduced by installing ____________ in it.

    i. a scrubber

    ii. an electrostatic precipitator

    iii. a catalytic converter

    Select the correct option:

25

Given below is a list of hormones. How many of the following are hypothalamic hormones?

i. Thyroid stimulating Hormone.

ii. Follicle stimulating hormone.

iii. Oxytocin

iv. Collip's hormone

v. Prolactostatin

vi. Gonadotropin Releasing hormone

vii. Adrenocorticotropin releasing hormone.

Select the correct option:

26

If you cross two heterozygous plants, how many of the all possible $F_1$ offsprings will also be heterozygous?

27

Small intestine opens into large intestine at the junction of _________

28

Which one of the following is NOT a prime element?

29

Germ pores of pollen grains are useful for

30

Primary urine contains all of the following, EXCEPT

31

Given below are two statements.

Statement I - The long term storage places like sediments and oceanic water are termed as 'sinks'.

Statement II - Human activities like fossil fuel burning and deforestation have affected the global carbon cycle.

In the light of above statements, select the correct option given below:

32

Resting potential of an axon is ___________ .

33

The figure shows photoperiodism. Identify its correct explanation from the following.

MHT CET (PCB) 2025 9th April Morning Shift Biology - Plant Growth and Development Question 1 English
34

Given below are two statements.

Statement I - In the follicular phase of menstrual cycle, the thickness of endometrium reaches $3-5 \mathrm{~mm}$.

Statement II - FSH stimulates 6-12 primary follicles to proceed in development to form secondary follicles.

In the light of above statements, Select the correct option given below:

35

Water constitutes about ______________to ____________ $\%$ of plant cells and tissues.

36

Arrange the following events of chemical evolution in proper sequence.

i. formation of nucleic acid

ii. formation of eobionts

iii. formation of protocell

iv. formation of complex organic compounds

37

A molecule of triglyceride is composed of

38

About _________ percentage of starch gets converted to maltose in mouth.

39

Total number of ATP molecules formed by substrate level phosphorylation in complete oxidation of one glucose molecule are ___________.

40

Which of the following pairs are haploid structures?

41

Match the Column I and II

Column (I) Column (II)
i. $\mathrm{CO}_2$ dissolved in plasma a. 23 %
ii. $\mathrm{CO}_2$ transported as bicarbonate ions b. 7 %
iii. $\mathrm{CO}_2$ transported by RBC as carbaminohaemoglobin c. 70 %
iv. $\mathrm{O}_2$ transportation by RBCs as oxyhaemoglobin d. 97 %

Choose the correct option:

42

Subcutaneous Filariasis is caused by __________

43

Which of the following organic acid is used in medicine for solubility of $\mathrm{Ca}^{++}$?

44

Given below are two statements.

Statement I - The recognition sites of RENs are 4-8 nucleotides bps long and are characterized by a particular type of internal symmetry.

Statement II - Different restriction enzymes found in different organisms recognise different nucleotide sequences and cut the DNA at different sites.

In the light of above statements, select the correct option given below:

45

Which one of the following neurohypophyseal hormones brings about increase in BP?

46

Glycine is coded by GGA in prokaryotic cell, it will code for ________ in eukaryotic cell.

47

Sexually reproduced offsprings tend to differ from their parents. This is known as __________

48

Which of the following is correct regarding cystine stones?

i. These are formed in response to bacterial infection.

ii. It is a genetic disorder.

iii. These grow quickly and become quite large.

iv. Occurs in people who consume high protein diet.

v. People who suffer excrete too much of certain amino acid.

49

Which one of the following enters mitochondrial matrix after glycolysis?

50

Match a type of artificial method of vegetative reproduction given in Column I with examples given in Column II.

Column (I) Column (II)
i. Root cutting a. Apple
ii. Bud grafting b. Sansevieria
iii. Stem cutting c. Blackberry
iv. Leaf cutting d. Rose

Choose the correct option:

51

Symptoms like disappearance of subcutaneous fat, prominent ribs, dry skin and atrophy of digestive glands are seen in one year old infant. Identify the disease this child is suffering from

52

The following forms of water EXCEPT _________ water is NOT available to plants for absorption.

53

Identify the mRNA transcribed from the DNA having following nucleotide sequence.

MHT CET (PCB) 2025 9th April Morning Shift Biology - Molecular Basis of Inheritance Question 1 English
54

Due to formation of oxyhaemoglobin, the pH of blood decreases due to release of $\mathrm{H}^{+}$ion and the $\mathrm{H}_2 \mathrm{CO}_3$ dissociates into $\mathrm{H}_2 \mathrm{O}$ and $\mathrm{CO}_2$. This is called __________ .

55

Given below are two statements.

Statement I - Thickness of ozone is more above the poles than at the equator.

Statement II - The 'ozone holes' are generally found in Antarctic region.

In the light of above statements, select the correct option given below:

56

The famous wine of Goa, traditionally called 'fenny', is made by fermenting the fleshy pedicels of __________ fruits.

57

Disorder caused due to accumulation of amyloid proteins in CNS is ___________

58

In genetic engineering, the foreign DNA is also called ___________ .

59

Excessive dosage of ____________ causes extreme happiness, irritability and paranoia

60

The blastocyst stage of development is reached by the end of ___________ day.

61

Pongidae includes $\qquad$

62

How many times dehydrogenation occurs during Krebs cycle?

63

Which of the following covering of testis originates from peritoneum?

64

In a dihybrid cross, $9: 3: 3: 1$ ratio, denotes that ___________.

65

How does the Hb act as buffer?

66

Which one of the following genetically engineered microorganisms, used for clearing oil spills in the sea, was given first biopatent?

67

The current loss of biodiversity which is progressing at an alarming rate is estimated to be ________ to __________ times faster than prehuman times.

68

Which of the following statements is INCORRECT regarding macula lutea?

69

Spores of which one of the microbial biocontrol agents are used to get rid of butterfly?

70

In oliguria condition, urine output is less than ___________.

71

Cerebrosides found in white matter of brain and myelin sheath contains

72

With respect to spermatogenesis, match Column I with Column II and select the correct option.

Column I Column II
i. Phase of growth a. Spermatid
ii. Spermiogenesis b. Primary Spermatocyte
iii. Production of spermatogonia c. Meiosis
iv. Phase
maturation of
d. Mitosis
73

Match concepts of origin of life in Column I with their examples given in Column II.

Column (I) Column (II)
i. Geographical a. Moths of Great Britain in 1845
ii. Convergent evolution b. Bones of forelimbs in man and whale
iii. Divergent evolution c. Wings of butterfly and bird
iv. Natural selection d. Darwin finches
Choose the correct option:
74

Which one of the following represents qualitative growth in plants?

75

The smallest WBC is __________.

76

Given below are two statements about absorption of water in plants.

Statement I - Rate of water absorption is maximum at soil temperature between 40 to $60^{\circ} \mathrm{C}$.

Statement II - High concentration of solutes in soil water increases the rate of absorption of water.

In the light of above statements, select the correct option given below:

77

Select the mismatched pair

78

Given below are two statements.

Statement I - Glycolysis occurs in cytoplasm of the cell.

Statement II - Glycolysis is a common process in aerobic as well as anaerobic respiration.

In the light of above statements, select the correct option given below:

79

Given below are two statements.

Statement I - Directional selection favours intermediate forms and eliminates both phenotypic extremes.

Statement II - In directional selection, more individuals acquire value other than mean character value.

In the light of above statements, select the correct option given below:

80

Select the correct statements regarding sympathetic nervous system.

i. It consists of 31 pairs of sympathetic ganglia.

ii. It is also called cranio- sacral outflow.

iii. It controls body activities like fight and flight

iv. Pre-ganglionic fibres are long and post response. ganglionic fibres are short.

v. Adrenaline is produced towards terminal end of post-ganglionic fibres.

81

The amount of ________ determines the pattern of ecological succession in the given area.

82

If 10 ml of the blood sample of a healthy person, containing added anticoagulant, is subjected to centrifugation, then approximately how much will be the amount of plasma?

83

Interaction between flamingos visiting Mumbai west coast and resident fishes is of _________ type.

84

Following are the limitations of ecological pyramids EXCEPT __________ .

85

Which one of the following hormones is a modified amino acid?

86

Minerals are absorbed by plants in the ionic form through _________ region of roots.

87

Which of the following pairs of organisms are ureotelic?

88

The core DNA in the nucleosome is _________ base pairs long

89

Match the concepts given in Column I with their scientist who proposed them given in Column II.

Column (I) Column (II)
i. Osmotic absorption a. Bohem
ii. Non-osmotic absorption b. Dixon and Jolly
iii. Capillarity theory c. Atkins and Priestley
iv. Cohesion- tension theory d. Kramer and Thiman

Choose the correct option:

90

Darwin's finches are good example of ____________

91

If the sequence of gene loci on a chromosome are A-B-C-D-E-O-T. Which of the following gene pair will have least probability of being inherited together?

92

Given below are two statements.

Statement I - The pituitary gland is situated in sella turcica of palate bone.

Statement II - The pituitary gland is attached to the hypothalamus by a hypophyseal stalk.

In the light of above statements, select the correct option given below:

93

Which one of the following combination of bacterial strains used by Griffith, when injected to mice will NOT kill them?

94

Which one of the following is INCORRECT regarding 'resource partitioning'?

95

Which one of the following is NOT a traditional knowledge passed down through generations?

96

Match the Column I with Column II with reference to biomagnification of DDT.

Column (I)
(Organism)
Column (II)
(DDT content)
i. Small fishes a. 0.04 ppm
ii. Fish eating Birds of Prey b. 0.5 ppm
iii. Large fishes c. 25 ppm
iv. Zooplankton d. 2.ppm
Choose the correct option:
97

Which one of the following plant hormones does NOT prevent abscission in plants?

98
Match the Column I with Column II.
Column (I)
(Parasite)
\begin{aligned}
& \text { Column (II) } \\
& \text { (Host) }
\end{aligned}
i. Ticks a. Marine fish
ii. Copepods b. Dog
iii. Cuscuta c. Indian crow
iv. Asian Koel d. Hedge plants
Choose the correct option:
99

Identify P and Q regions in the diagram of histology of alimentary canal and identify the type of tissue.

MHT CET (PCB) 2025 9th April Morning Shift Biology - Digestion and Absorption Question 1 English
100

Which one of the following is NOT a cyanobacterial biofertilizer?

Chemistry

1

Which of the following is water gas shift reaction?

2

Which from following amino acids is synthesized in our body?

3
Calculate the energy of photon in electromagnetic radiation having wavelength $400 \mathrm{~nm}\left(\mathrm{~h}=6.626 \times 10^{-34} \mathrm{Js} ; \mathrm{c}=3 \times 10^8 \mathrm{~ms}^{-1}\right)$.
4

The conductivity of 0.1 M KCl solution at $23^{\circ} \mathrm{C}$ is $0.012 \Omega^{-1} \mathrm{~cm}^{-1}$.

Resistance of a cell containing the solution at same temperature was found to be $50 \Omega$. Calculate the cell constant.

5

$60 \%$ of a first order reaction is completed in 60 minute. What is the time taken by reactant to decompose half of its original amount?

6

The osmotic pressure of equimolar concentration of $\mathrm{CaCl}_2$ and urea at same temperature are 0.6 atm and 0.25 atm respectively. Calculate van't Hoff factor for $\mathrm{CaCl}_2$.

7

Which from following is an example of intensive property?

8

What is EAN of Mn in $\mathrm{Mn}(\mathrm{CO})_5$ ?

9

Which of the following on reaction with Grignards reagent followed by hydrolysis forms secondary alcohol?

10

Identify inner transition element from following.

11

Identify the electrolyte from following so that $\wedge_0$ is not obtained from the graphical variation of $\wedge$ against $\sqrt{\mathrm{C}}$ ?

12

Identify the quantity of carbohydrate units formed after hydrolysis of n mole lactose.

13

24 g carbon react with oxygen to produce 88 g carbon dioxide. Find the amount of oxygen used.

14

Which of the following statements is NOT true about vacancy defect?

15

Which of the following is the most abundant chalcogens?

16

What is the number of moles of ' C ' atoms and ' H ' atoms respectively present in n mole molecule represented as follows?

MHT CET (PCB) 2025 9th April Morning Shift Chemistry - General Organic Chemistry Question 2 English
17

For a certain reaction, $\Delta \mathrm{H}^{\circ}=219 \mathrm{~kJ}$ and $\Delta \mathrm{S}^{\circ}=-21 \mathrm{JK}^{-1}$. Find the value of $\Delta \mathrm{G}^{\circ}$.

18

Identify product P in following reaction. Acetamide $+4[\mathrm{H}] \xrightarrow{\mathrm{Na}_2-\mathrm{C}_2 \mathrm{H}_5 \mathrm{OH}} \mathrm{P}$

19

What is IUPAC name of glyoxal?

20

Which from following is a biodegradable polymer?

21

Identify an aldehyde used in margarine and food for its buttery odour.

22

Consider the reaction

$$ 3 \mathrm{I}_{(\mathrm{aq})}^{-}+\mathrm{S}_2 \mathrm{O}_{8(\mathrm{aq})}^{--} \longrightarrow \mathrm{I}_{3(\mathrm{aq})}^{-}+2 \mathrm{SO}_{4(\mathrm{aq})}^{2-} $$

rate of formation of $\mathrm{SO}_4^{2-}$ at a particular time is

$$ 2.2 \times 10^{-2} \mathrm{~mol} \mathrm{dm}^{-3} \mathrm{~s}^{-1} $$

What is the value of $\frac{d}{d t}\left[I_3^{-}\right]$?

23

Calculate the number of electrons required to reduce completely $0.1 \mathrm{~mol} \mathrm{Al}^{+3}$ ions from aqueous $\mathrm{Al}_2\left(\mathrm{SO}_4\right)_3$ solution.

24

Which of the following compounds has highest lattice energy?

25

Identify linear polymer from following.

26

What is the maximum number of ester linkages in a triglyceride?

27

Identify the compound from following so that Ostwald's dilution law is NOT applicable to it.

28

What is the number of alkyl groups attached with N -atom of amines formed when 4 n moles of alkyl halide treated with n mole alc. $\mathrm{NH}_3$ at 373 K ?

29

Which among the following is vinylic halide?

30

Which from following is a transition element and also included as post actinoid element?

31

What is the number of electrons released in conversion of $\mathrm{C}_2 \mathrm{O}_4^{2-}$ to $\mathrm{CO}_2$ ?

32

Which from following is the strongest haloacetic acid?

33

Which of the following alkanes does NOT exhibit structural isomerism?

34

Calculate the volume occupied by a particle in simple cubic unit cell if the total volume of unit cell is $4.0 \times 10^{-23} \mathrm{~cm}^3$.

35

Which of the following gas has high percentage by volume in air?

36

The rate law for the reaction, $x \mathrm{~A}+y \mathrm{~B} \longrightarrow \mathrm{mP}+\mathrm{nQ}$, is $\mathrm{r}=\mathrm{k}[\mathrm{A}]^{\mathrm{c}} \times[\mathrm{B}]^{\mathrm{d}}$ What is the overall order of reaction?

37

Calculate the molal elevation constant of water if boiling point of 0.7 m solution of non volatile solute is 373.5 K .

[Boiling point of water $=373.15 \mathrm{~K}$ ]

38

Calculate the work done in following reaction.

$$ \begin{aligned} & \mathrm{C}_2 \mathrm{H}_{4(\mathrm{~g})}+\mathrm{HCl}_{(\mathrm{g})} \longrightarrow \mathrm{C}_2 \mathrm{H}_5 \mathrm{Cl}_{(\mathrm{g})} \text { at } 27^{\circ} \mathrm{C} . \\ & \left(\mathrm{R}=8.314 \mathrm{~J} \mathrm{~K}^{-1} \mathrm{~mol}^{-1}\right) \end{aligned} $$

39

At 298 K pH of a solution is 13 . What is the number of $\mathrm{H}_3 \mathrm{O}^{+}$ions present in one mL of this solution?

40

Which of the following compounds has highest boiling point?

41

Identify the ligands present Pentaamminecarbonatocobalt(III)chloride.

42

Identify zero-dimensional nanostructure from examples given below.

43

Which of the following is false regarding adsorption?

44

What is the molecular formula of following compound?

MHT CET (PCB) 2025 9th April Morning Shift Chemistry - General Organic Chemistry Question 1 English
45

What is the name of t-butyl alcohol according to carbinol system?

46

In ionic solid, anions are arranged in ccp array and cations occupy all the octahedral voids. What is the formula of ionic compound? [consider $\mathrm{A}=$ cation; $\mathrm{B}=$ anion]

47

Which of the following is secondary benzylic alcohol?

48

Which of the following hydride of chalcogens has lowest bond angle and highest bond length?

49

What type of solution is the benzoic acid in benzene?

50

The solubility product of $\mathrm{PbI}_2$ is $2.8 \times 10^{-8}$. Calculate its solubility in $\mathrm{mol} \mathrm{dm}^{-3}$.

Physics

1

When forward bias is applied to a p-n junction, then the potential barrier and the width of the depletion region respectively.

2

Four solid spheres each of mass ' $m$ ' and radius ' $r$ ' are arranged as shown in the figure. The moment of inertia of the system about the given axis of rotation $\mathrm{AA}^1$ is

MHT CET (PCB) 2025 9th April Morning Shift Physics - Rotational Motion Question 2 English
3

A wave is travelling in the negative x direction having displacement 3 cm along Y direction, wavelength $2 \pi \mathrm{~m}$ and frequency $\left(\frac{1}{2 \pi}\right) \mathrm{Hz}$ is represented as ( $t=$ time)

4

A straight wire of mass ' M ' and length 2 m is placed in a magnetic field of 2 T which is acting perpendicular to the length of the wire. When a current of 1 A flows through the wire, the wire experiences an upthrust and leviates in a magnetic field. The mass ' $M$ ' of the wire is (acceleration due to gravity $\mathrm{g}=10 \mathrm{~m} / \mathrm{s}^2$ )

5

A photon and an electron have equal energy ' $E$ '. The ratio of wavelength of photon to wavelength of electron is proportional to

6

A passenger is sitting in a train which is moving fast. The engine blows a whistle of frequency ' n '. If the apparent frequency of sound heard by the passenger is $n^1$ then

7

If the shape of the liquid surface is curved, then the

8

' n ' polarising sheets are arranged such that each makes an angle $45^{\circ}$ with the proceeding sheet. An unpolarised light of intensity I is incident into this arrangement. The output intensity is I/ 64 . The value of $n$ will be $\left(\cos 45^{\circ}=1 / \sqrt{2}\right)$

9

An alternating voltage $\mathrm{V}=100 \sqrt{2} \sin (50 \mathrm{t})$ is connected to $2 \mu \mathrm{~F}$ capacitor through a.c. ammeter. The reading of the ammeter is

10

A gas at $800^{\circ} \mathrm{C}$ is cooled until both its pressure and volume are halved. The final temperature of the gas will be

11

When the r.m.s. velocity of a gas is denoted by ' V ' and temperature of the gas by T , which of the following relations is TRUE?

12

An inductor of 0.5 mH , capacitor of $20 \mu \mathrm{~F}$ and resistance of $20 \Omega$ are connected in series with a 220 V a.c. source. If the current is in phase with e.m.f., the maximum current in the circuit is $\sqrt{x} A$. The value of $x$ is

13

A particle vibrating simple harmonically has an acceleration of $16 \mathrm{~cm} / \mathrm{s}^2$, when it is at a distance of 4 cm from the mean position. Its periodic time is

14

Two inductors of 88 mH each are joined in parallel. The current passing through this combination is 4 A . The energy stored in this combination of inductors in joule is

15

In a projectile motion shown in figure, which one of the following statements is NOT CORRECT?

MHT CET (PCB) 2025 9th April Morning Shift Physics - Motion Question 1 English
16

A string of length $L$ is fixed at one end and carries a mass m at the other end. The string makes $\frac{3}{\pi}$ revolutions per second around the vertical axis through the fixed end. The tension in the string is

MHT CET (PCB) 2025 9th April Morning Shift Physics - Circular Motion Question 1 English
17

When three capacitors of capacitances ' C ', ' 2 C '? and ' 3 C ' are connected in series. The potential difference applied across the combination is ' $V$ '. The energy stored in the circuit is

18

In the spectrum of hydrogen atom the ratio of the longest wavelength in the Balmer series to the longest wavelength in the Lyman series is

19

A spherical liquid drop of radius R is divided into 64 equal droplets. If surface tension is $T$ then the work done in this process will be

20

A lens of power +5 D is put in contact with a lens of power -3 D . The combination will behave like a

21

A glass capillary of radius 0.35 mm is inclined at $60^{\circ}$ with the vertical in water. The length of water column in the capillary tube is (surface tension of water $=7 \times 10^{-2} \mathrm{Nm}^{-1}$, acceleration due to gravity $=10 \mathrm{~m} / \mathrm{s}^2, \cos 0^{\circ}=1$, $\cos 60^{\circ}=0.5$, density of water $=1 \mathrm{gram} / \mathrm{cm}^3$ )

22

In a given circuit, AB is a uniform potentiometer wire. If the value of resistance ' $R$ ' is slightly increased, the balance point

MHT CET (PCB) 2025 9th April Morning Shift Physics - Current Electricity Question 2 English
23

In common emitter configuration, $\beta, \mathrm{R}_{\mathrm{L}}$ and r are the a.c. current gain, load resistance and the input resistance of a transistor respectively. The voltage and power gain respectively are

24

A rigid body weighs 25 gram and has a measured volume of $5 \mathrm{~cm}^3$. The possible error in the measurement of mass and volume are 0.01 gram and $0.1 \mathrm{~cm}^3$. The maximum error in the density will be

25

The average kinetic energy of a molecule of the gas is

26
In an a.c. circuit $I=50 \sin 100 \pi t$. The time required for the current to achieve its peak value will be
27

The average velocity of a particle performing S.H.M. in one complete vibration is ( $\mathrm{A}=$ amplitude of S.H.M., $\omega=$ angular velocity)

28

The range of voltmeter of resistance $300 \Omega$ is 5 V . The resistance required to be connected to convert it into an ammeter of range 5 A is nearly

29

The value of acceleration due to gravity (g) becomes $\left(\frac{g}{3}\right)$ at height ' $h$ ' above the earth's surface. If ' R ' is the radius of earth, the height h will be equal to

30

A bicycle wheel of diameter ' $D$ ' has ' $N$ ' number of spokes. Wheel is rotating at the rate of ' $x$ ' revolutions per minute, perpendicular to the horizontal component of earth's magnetic field ' $\mathrm{B}_{\mathrm{H}}$ '. The e.m.f. induced between the rim and the centre of the wheel will be

31

Four thin rods of same mass M and same length L form a square as shown in figure. Moment of inertia of this system about an axis passing through point O and perpendicular to its plane is

MHT CET (PCB) 2025 9th April Morning Shift Physics - Rotational Motion Question 1 English
32

Two spherical black bodies of radius $\mathrm{R}_1$ and $\mathrm{R}_2$ with surface temperatures $\mathrm{T}_1$ and $\mathrm{T}_2$ respectively. If $T_1=2 T_2$ and they radiate the same power then relation between $R_1$ and $R_2$ is

33

A simple pendulum has mass 2 gram and charge $2 \mu \mathrm{C}$. In a uniform horizontal electric field of intensity $1000 \mathrm{~V} / \mathrm{m}$, pendulum is at rest. At equilibrium, the angle made by the pendulum with the vertical is ( $\mathrm{g}=$ acceleration due to gravity $=10 \mathrm{~m} / \mathrm{s}^2$ )

34

A mass ' $M$ ' is suspended from a spring of negligible mass. The spring is pulled a little and then released so that the mass executes S.H.M. of periodic time ' $T$ '. If the mass is increased by ' $m$ ', the time period becomes $4 T / 3$, then the ratio of $\frac{\mathrm{M}}{\mathrm{m}}$ is

35

The energy of a photon is equal to the kinetic energy of proton. If $\lambda_1$ is the de-Broglie wavelength of a proton, $\lambda_2$ is the wavelength associated with the photon and if E is the energy of photon then $\lambda_2: \lambda_1$ is

36

In an adiabatic change, the pressure and temperature of a diatomic gas are related as $\mathrm{P} \propto \mathrm{T}^{\mathrm{c}}$, where c is a constant. The value of c is (consider gas molecules are rigid)

37

If $|\vec{A} \times \vec{B}|=\sqrt{3}(\vec{A} \cdot \vec{B})$ then the value of $|\vec{A}+\vec{B}|$ is $\left(\tan 60^{\circ}=\sqrt{3}, \cos 60^{\circ}=0.5\right)$

38

In an interference experiment, the phase difference between the waves reaching a first dark point is

39

The magnetic field at the centre of a current carrying circular coil of area ' $A$ ' is ' $B$ '. The magnetic moment of the coil is $x$ times $\left(2 B / \mu_0\right)$. The value of $x$ is ( $\mu_0=$ permeability of free space)

40

A capacitor of capacitance ' C ' is connected across a.c. source of voltage V as $\mathrm{V}=\mathrm{V}_0 \sin \omega \mathrm{t}$. The displacement current between the plates of the capacitor would be

41

The series limit for the frequency of Balmer series is ' $\mathrm{v}_{\mathrm{B}}$ ', then the series limit frequency of Paschen series ' $v_p$ ' is

42

In Young's double slit experiment, the intensities at two points, for the path difference $\frac{\lambda}{4}$ and $\frac{\lambda}{3}$ are $\mathrm{I}_1$ and $\mathrm{I}_2$ respectively. If $\mathrm{I}_0$ denotes the intensity produced by each one of the individual slits then the ratio $\left(\mathrm{I}_1+\mathrm{I}_2\right): \mathrm{I}_0$ is $\left(\cos 45^{\circ}=1 / \sqrt{2}\right)\left(\cos 60^{\circ}=0.5\right)$

43

A system is compressed adiabatically, then its temperature

44

A solenoid has core of a material with relative permeability 301 and its winding carries a current of 2 A . The number of turns of the solenoid is 600 per metre. The magnetization of the material is

45

Two points on a travelling wave having frequency 500 Hz and velocity $300 \mathrm{~m} / \mathrm{s}$ are $30^{\circ}$ out of phase, then the minimum distance between the two points is

46

The charges are arranged at the four corners of square $A B C D$ of side ' $d$ ' as shown in figure. The work required to put this arrangement together is given by

MHT CET (PCB) 2025 9th April Morning Shift Physics - Electrostatics Question 2 English
47

If current ' i ' is passing through the solenoid of diameter ' $d$ ' having number of turns per unit length ' $n$ ', then the inductance per unit length near the middle of a long solenoid is directly proportional to

48

Force is applied to a body of mass 2 kg at rest on a frictionless horizontal surface as shown in the force against time $(\mathrm{F}-\mathrm{t})$ graph. The speed of the body after 1 s is

MHT CET (PCB) 2025 9th April Morning Shift Physics - Laws of Motion Question 1 English
49

The order of (a) transformer (b) diode rectifier (c) filter (d) voltage regulator in a block diagram of simple rectifier circuit is as

(a) b, d, c, a

(b) a, c, d, b

(c) a, b, c, d

(d) d, c, a, b

50

A simple harmonic progressive wave is given by $y=A \sin 2 \pi\left(n t-\frac{x}{\lambda}\right)$. If the wave velocity is equal to $=\frac{1}{3}$ (maximum particle velocity) then the wavelength $\lambda$ is given by