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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 common emitter amplifier is designed with n-p-n transistor (α=0.99).
- Two spherical bodies of mass M and 5 M and radii R and 2 R released in free space
- In Young’s double slit experiment the distance between the slits and the screen
- A tangent galvanometer has a coil of 50 turns and a radius of 20 cm. The horizontal
- The angle between the dipole moment and electric field at any point on the equatoria
Topics: Ray Optics (94)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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