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When the angle of incidence is 60° on the surface of a glass slab, it is found that the reflected ray is completely polarised. The velocity of light in glass is
Options
(a) √2 x 10⁸ m/s
(b) √3 x 10⁸ m/s
(c) 2 x 10⁸ m/s
(d) 3 x 10⁸ m/s
Correct Answer:
√3 x 10⁸ m/s
Explanation:
From Brewster’s law μ = tan iᴘ
c/v = tan 60° = √3
v=c / √3 = 3 × 10⁸ / √3
= √3 × 10⁸ m/sec
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Topics: Ray Optics
(94)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- A hollow metal sphere of radius 10 cm is charged such that the potential on its surface
- A thin wire of resistance 4 ohm is bent to form a circle. The resistance across
- A disc of radius 0.1 m is rotating with a frequency 10 rev/sec in a normal magnetic
- A boy whirls a stone in a horizontal circle of radius 1.5 m and at height 2.0 m
- When temperature of an ideal gas is increased from 27⁰C to 227⁰C,
Topics: Ray Optics (94)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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