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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 amount of heat energy required to raise the temperature of 1 g of Helium
- A heavy nucleus at rest breaks into two fragments which fly off with velocities
- The magnetic field at a point on the axis of a long solenoid having 5 turns per cm
- A plane electromagnetic wave of frequency 20 MHz travels through a space along
- The mean free path of molecules of a gas,(radius ‘r’) is inversely proportional to
Topics: Electromagnetic Waves (28)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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