1
COMEDK 2026 Afternoon Shift
MCQ (Single Correct Answer)
+1
-0

The ratio of the angle of deviation produced by a thin prism, when it is placed in air to the angle of deviation produced when it is immersed in water of refractive index $\frac{4}{3}$ is:

A

$4: 1$

B

$8: 9$

C

$ 9:8$

D

$1: 4$

2
COMEDK 2026 Afternoon Shift
MCQ (Single Correct Answer)
+1
-0

A vessel of volume $27 \times 10^4 \mathrm{cc}$, contains a mixture of Hydrogen (molar mass $=2 \mathrm{~g} \mathrm{~mol}^{-1}$ ) and oxygen (molar mass $=32 \mathrm{~g} \mathrm{~mol}^{-1}$ ) gas at standard temperature and pressure. If the mass of hydrogen is 16 g , find the mass of oxygen gas contained in the vessel.

A

160 g

B

129.7 g

C

64 g

D

72 g

3
COMEDK 2026 Afternoon Shift
MCQ (Single Correct Answer)
+1
-0

In a uniform electric field $10^6 N C^{-1}$ an electric dipole of length 4 cm is placed with its axis making an angle $60^{\circ}$ with the electric field. If the dipole experiences a torque of $8 \sqrt{3} \mathrm{~N} \mathrm{~m}$.

Find the potential energy of the dipole.

A

$-8 J$

B

$ 8 J$

C

$-16 J$

D

$16 J$

4
COMEDK 2026 Afternoon Shift
MCQ (Single Correct Answer)
+1
-0

The variation of the stopping potential ( $\mathrm{V}_{\mathrm{o}}$ ) with the frequency of incident radiation( $n$ ) is as given below.

[no - threshold frequency. h - Planck's constant e-electronic charge] then the slope of the graph AB with the frequency axis is:

COMEDK 2026 Afternoon Shift Physics - Dual Nature of Radiation Question 1 English

A

$\frac{h}{e}$

B

$\frac{h n_0}{V_0}$

C

$\frac{n_0}{V_0}$

D

$$ \frac{V_0}{n_0} $$