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

A charge of $8 \mu \mathrm{C}$ exists at the centre of the square $A B C D$. The work done in moving a $4 \mu C$ point charge from corner A to corner B is (Along side AB )

A

4 J

B

8 J

C

2 J

D

zero J

2
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

$\sqrt{3}: 2$

3
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.

4
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

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