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A ray of light travelling in a transparent medium of refractive index µ, falls on surface seperating the medium from air at an angle of incidence of 45⁰. For which of the following value of µ the ray can undergo total internal reflection?
Options
(a) µ = 1.33
(b) µ = 1.40
(c) µ = 1.50
(d) µ = 1.25
Correct Answer:
µ = 1.50
Explanation:
For the initial reflection,
µ >= 1 / sin C >= √2 >= 1.414
µ = 1.50
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Topics: Ray Optics
(94)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- An automobile moves on a road with a speed of 54 km h⁻¹. The radius of its wheels
- Efficiency of a Carnot engine is 50% when temperature of sink is 500K. In order
- Two sources of sound placed close to each other are emitting progressive waves
- Power dissipated in an LCR series circuit connected to an a.c source of emf ? is
- 24 cells of emf 1.5 V each having internal resistance of 1 ohm are connected
Topics: Ray Optics (94)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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