1
AP EAPCET 2025 - 23rd May Evening Shift
MCQ (Single Correct Answer)
+1
-0

In Young's double slit experiment, if the distance between the slits is increased to 3 times initial distance, then the ratio of initial and final fringe widths is

A

$9: 1$

B

$1: 9$

C

$1: 3$

D

$3: 1$

2
AP EAPCET 2025 - 23rd May Evening Shift
MCQ (Single Correct Answer)
+1
-0

A solid of mass 1 kg has $6 \times 10^{24}$ atoms. If one electron is removed from every one atom of $0.005 \%$ of the atoms, then the charge gained by the solid is

A

+24 C

B

+48 C

C

+96 C

D

+60 C

3
AP EAPCET 2025 - 23rd May Evening Shift
MCQ (Single Correct Answer)
+1
-0

One of the two identical capacitors having the same capacitance $C$, is charged to a potential $V_1$ and the other is charged to a potential $V_2$. If they are connected with their like plates together, then the decrease in the electrostatic potential energy of the combined system is

A

$\frac{C}{4}\left(V_1^2-V_2^2\right)$

B

$\frac{C}{4}\left(V_1^2+V_2^2\right)$

C

$\frac{C}{4}\left(V_1-V_2\right)^2$

D

$\frac{C}{4}\left(V_1+V_2\right)^2$

4
AP EAPCET 2025 - 23rd May Evening Shift
MCQ (Single Correct Answer)
+1
-0

If the energy stored in a spherical conductor having a charge of $12 \mu \mathrm{C}$ is 6 J , then the radius of the spherical conductor is

A

10.8 cm

B

0.108 cm

C

1.08 cm

D

108 cm