1
AP EAPCET 2025 - 27th May Morning Shift
MCQ (Single Correct Answer)
+1
-0

A ray of light incidents at an angle of $60^{\circ}$ on the first face of a prism. The angle of the prism is $30^{\circ}$ and its second face is silvered. If the light ray inside the prism retraces its path after reflection from the second face, then the refractive index of the material of the prism is

A

$\frac{2}{\sqrt{3}}$

B

$\frac{3}{2}$

C

$\sqrt{2}$

D

$\sqrt{3}$

2
AP EAPCET 2025 - 27th May Morning Shift
MCQ (Single Correct Answer)
+1
-0

In an experiment, two polariods are arranged such that the intensity of the polarised light emerged from the second polaroid is $37.5 \%$ of the intensity of the unpolarised light incident on the first polaroid. Then the angle between the axes of the two polaroids is

A

$60^{\circ}$

B

$90^{\circ}$

C

$45^{\circ}$

D

$30^{\circ}$

3
AP EAPCET 2025 - 27th May Morning Shift
MCQ (Single Correct Answer)
+1
-0

If two particles $A$ and $B$ of charges $1.6 \times 10^{-19} \mathrm{C}$ and $3.2 \times 10^{-19} \mathrm{C}$ respectively are separated by a distance of 3 cm in air, then the magnitude of electrostatic force on particle $A$ due to particle $B$ is

A

$5.12 \times 10^{-22} \mathrm{~N}$

B

$5.12 \times 10^{-32} \mathrm{~N}$

C

$5.12 \times 10^{-12} \mathrm{~N}$

D

$5.12 \times 10^{-25} \mathrm{~N}$

4
AP EAPCET 2025 - 27th May Morning Shift
MCQ (Single Correct Answer)
+1
-0

If four charges $+12 \mathrm{nC},-20 \mathrm{nC},+32 \mathrm{nC}$ and -15 nC are arranged at the four vertices of a square of side $\sqrt{2} \mathrm{~m}$, then the net electric potential at the centre of the square due to these four charges is

A

72 V

B

81 V

C

64 V

D

36 V