1
NEET 2022 Phase 1
+4
-1

A light ray falls on a glass surface of refractive index $$\sqrt3$$, at an angle 60$$^\circ$$. The angle between the refracted and reflected rays would be

A
30$$^\circ$$
B
60$$^\circ$$
C
90$$^\circ$$
D
120$$^\circ$$
2
NEET 2022 Phase 1
+4
-1

When light propagates through a material medium of relative permittivity $$\varepsilon$$r and relative permeability $$\mu$$r, the velocity of light, v is given by (c-velocity of light in vacuum)

A
v = c
B
$$v = \sqrt {{{{\mu _r}} \over {{\varepsilon _r}}}}$$
C
$$v = \sqrt {{{{\varepsilon _r}} \over {{\mu _r}}}}$$
D
$$v = {c \over {\sqrt {{\varepsilon _r}{\mu _r}} }}$$
3
NEET 2022 Phase 1
+4
-1

Two transparent media A and B are separated by a plane boundary. The speed of light in those media are 1.5 $$\times$$ 108 m/s and 2.0 $$\times$$ 108 m/s, respectively. The critical angle for a ray of light for these two media is

A
sin$$-$$1 (0.500)
B
sin$$-$$1 (0.750)
C
tan$$-$$1 (0.500)
D
tan$$-$$1 (0.750)
4
NEET 2021
+4
-1
Find the value of the angle of emergence from the prism. Refractive index of the glass is $$\sqrt 3$$ A
90$$^\circ$$
B
60$$^\circ$$
C
30$$^\circ$$
D
45$$^\circ$$
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