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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
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Topics: Ray Optics
(94)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- A capacitor is used to store 24 watt hour of energy at 1200 volt.
- A body, which emits radiations of all possible wavelengths, is known as
- To what temperature should the hydrogen at room temperature (27°C) be heated at constant
- For a cubic crystal structure which one of the following relations
- Ice is wrapped in black and white cloth. In which cases more ice will melt
Topics: Ray Optics (94)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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