1
MHT CET (PCB) 2025 9th April Evening Shift
MCQ (Single Correct Answer)
+1
-0

A stone is projected at an angle $60^{\circ}$ to the horizontal. The ratio of kinetic energy of the stone at point of projection to its kinetic energy at highest point of flight will be $\left(\cos 60^{\circ}=0.5\right)$

A

$1: 4$

B

$4: 1$

C

$\quad 2: 1$

D

$\sqrt{3}: 2$

2
MHT CET (PCB) 2025 9th April Evening Shift
MCQ (Single Correct Answer)
+1
-0

The loudness and pitch of sound note respectively depend upon

A

intensity and velocity only.

B

velocity and frequency only.

C

frequency and number of harmonics.

D

intensity and frequency.

3
MHT CET (PCB) 2025 9th April Evening Shift
MCQ (Single Correct Answer)
+1
-0

A Carnot engine has an efficiency of $\frac{1}{6}$. When the temperature of sink is reduced by 62 K , its efficiency is doubled. The temperature of the source is

A

$37^{\circ} \mathrm{C}$

B

$62^{\circ} \mathrm{C}$

C

$99^{\circ} \mathrm{C}$

D

$124^{\circ} \mathrm{C}$

4
MHT CET (PCB) 2025 9th April Evening Shift
MCQ (Single Correct Answer)
+1
-0

A cell is balanced against 240 cm and 100 cm of potentiometer wire, respectively, when in open circuit and when short-circuited through a resistance of $5 \Omega$. The internal resistance of the cell is

A

$1.4 \Omega$

B

$2.4 \Omega$

C

$7 \Omega$

D

$9 \Omega$