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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
- The shortest wavelength in Lyman series is 91.2 nm. The largest wavelength
- A transverse wave is represented by y = a sin (?t – kx)
- A vertical spring with force constant k is fixed on a table. A ball of mass
- Radius of a soap bubble is increased from R to 2R. Work done in this process
- The energy of the em waves is of the order of 15 keV. To which part of the spectrum
Topics: Electromagnetic Waves (28)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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