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A ray of light is incident at an angle of incidence i, on one face of a prism of angle A (assumed to be small) and emerges normally from the opposite face. If the refractive index of the prism is μ, then the angle of incidence i, is nearly equal to
Options
(a) μA
(b) μA/2
(c) A/μ
(d) A/2μ
Correct Answer:
μA
Explanation:
For normally emerge e =0
Therefore r₂ = 0 and r₁ = A
Snell’s Law for Incident ray’s
1 sin i = µ sin r₁ = µ sin A
For small angle i = µA
Related Questions: - The electric potential at a point in free space due to a charge Q coulomb is Q x 10¹¹ v
- A certain metallic surface is illuminated with monochromatic light of wavelength
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Topics: Ray Optics
(94)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- The electric potential at a point in free space due to a charge Q coulomb is Q x 10¹¹ v
- A certain metallic surface is illuminated with monochromatic light of wavelength
- The unit of surface tension is
- Two capacitors of 10pF and 20pF are connected to 200V and 100V sources, respectively.
- With what minimum acceleration can a fireman slide down a rope while breaking
Topics: Ray Optics (94)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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