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The polarising angle of glass is 57⁰. A ray of light which is incident at this angle will have an angle of refraction as
Options
(a) 43⁰
(b) 25⁰
(c) 38⁰
(d) 33⁰
Correct Answer:
33⁰
Explanation:
Given, θₚ = 57⁰
According to Brewster’s law, we have
θₚ + r = 90⁰ ⇒ r = 90⁰ – θₚ ⇒ r = 90⁰ – 57
Angle of refraction, r = 33⁰
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Topics: Wave Optics
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Subject: Physics
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Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- An alternating electric field, of frequency v, is applied across the dees (radius = R)
- A piece of marble is projected from the earth’s surface with velocity of 50 m/s
- A spherical drop of capacitance 1μF is broken into eight drops of equal radius.
- If the terminal speed of a sphere of gold (density=19.5 kg/m³) is 0.2 m/s
- The intensity of magnetisation of a bar magnet is 5×10⁴ Am⁻¹. The magnetic length
Topics: Wave Optics (101)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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