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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
(101)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- An object moving with a speed of 6.25 m/s, is deaccelerated at a rate given by
- The half life of radium is 1620 yr and its atomic weight is 226 kg per kilo mol.
- In potentiometer experiment, a cell of emf 1.25V gives balancing length of 30 cm
- A radioactive substance decays to 1/16th of its initial activity in 40 days.
- The frequencies of X-rays,γ-rays and ultraviolet rays are respectively p,q and r
Topics: Wave Optics (101)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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