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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
Related Questions: - The potential energy of a long spring when stretched by 2 cm is U.
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Topics: Ray Optics
(94)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- The potential energy of a long spring when stretched by 2 cm is U.
- Sodium and copper have work function 2.3 eV and 4.5 eV respectively
- The core of a transformer is laminated because
- A block of mass m is moving on a wedge with the acceleration aᵒ
- The electric potential at the surface of an atomic nucleus (z=50) of radius
Topics: Ray Optics (94)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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