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A ray of light passes from a medium A having refractive index 1.6 to the medium B having refractive index 1.5. The value of critical angle of medium A is……..
Options
(a) sin⁻¹ √16/15
(b) sin⁻¹(16/15)
(c) sin⁻¹(1/2)
(d) sin⁻¹(15/16)
Correct Answer:
sin⁻¹(15/16)
Explanation:
As the law of refraction, we have
sin i(c) / sin 90° = 1.5 / 1.6
Therefore sin i(c) = 15 / 16
where i(c) = critical angle of medium, A = sin⁻¹ (15 / 16)
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Topics: Ray Optics
(94)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- A rod of weight W is supported by two parallel knife edges A and B is in equilibrium
- Radii of curvature of a converging lens are in the rato 1:2. Its focal length
- A radioactive substance contains 10000 nuclei and its halflife period is 20 days
- An open knife edge of mass 200g is dropped from height 5m on a cardboard
- Photoelectric emision occurs only when the incident light has more than a certain minimum
Topics: Ray Optics (94)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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