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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
- A liquid wets a solid completely. The meniscus of the liquid in a sufficiently long
- In common base mode of a transistor, the collector current is 5.488 mA
- A body oscillates with amplitude of 10 cm in a horizontal platform.
- In a pure capacitive A.C circuit, current and voltage differ in phase by
- The half life of radium is about 1600 year. Of 100 gram of radium existing now
Topics: Ray Optics (94)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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