NEET 2022 Phase 1 | Optics Question 17 | Physics

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)

v = c

$$v = \sqrt {{{{\mu _r}} \over {{\varepsilon _r}}}} $$

$$v = \sqrt {{{{\varepsilon _r}} \over {{\mu _r}}}} $$

$$v = {c \over {\sqrt {{\varepsilon _r}{\mu _r}} }}$$

NEET 2022 Phase 1

MCQ (Single Correct Answer)

-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

sin^$$-$$1 (0.500)

sin^$$-$$1 (0.750)

tan^$$-$$1 (0.500)

tan^$$-$$1 (0.750)

NEET 2021

MCQ (Single Correct Answer)

-1

Find the value of the angle of emergence from the prism. Refractive index of the glass is $$\sqrt 3 $$

NEET 2021 Physics - Optics Question 21 English

90$$^\circ$$

60$$^\circ$$

30$$^\circ$$

45$$^\circ$$

NEET 2021

MCQ (Single Correct Answer)

-1

A convex lens 'A' of focal length 20 cm and a concave lens 'B' of focal length 5 cm are kept along the same axis with a distance 'd' between them. If a parallel beam of light falling on 'A' leaves 'B' as a parallel beam, then the distance 'd' in cm will be :

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