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If c is the velocity of light in free space, the time taken by light to travel a distance x in a medium refractive index μ is
Options
(a) x/c
(b) μx/c
(c) x/μc
(d) c/μx
Correct Answer:
μx/c
Explanation:
Velocity of light in a medium v = c / μ
We known time taken t = x / v
⇒ t = x / (c/μ) = μx / c
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Topics: Electromagnetic Waves
(28)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- A thin and circular disc of mass M and radius R is rotating in a horizontal plane
- A ball is dropped from the root of a tower of height h
- When a current of (2.5±0.5) A flows through a wire, it develops a potential difference
- The near point and far point of a person are 40 cm and 250 cm, respectively.
- A pellet of mass 1 g is moving with an angular velocity of 1 rad/s along a circle
Topics: Electromagnetic Waves (28)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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