MENU

When the angle of incidence is 60° on the surface of a glass slab, it is found

When The Angle Of Incidence Is 60 On The Surface Physics Question

When the angle of incidence is 60° on the surface of a glass slab, it is found that the reflected ray is completely polarised. The velocity of light in glass is

Options

(a) √2 x 10⁸ m/s
(b) √3 x 10⁸ m/s
(c) 2 x 10⁸ m/s
(d) 3 x 10⁸ m/s

Correct Answer:

√3 x 10⁸ m/s

Explanation:

From Brewster’s law μ = tan iᴘ

c/v = tan 60° = √3

v=c / √3 = 3 × 10⁸ / √3

= √3 × 10⁸ m/sec

Related Questions:

  1. Which of the following, is a vector quantity?
  2. Two slits in Young’s experiment have widths in the ratio 1:25. The ratio of intensity
  3. A wire elongates by l mm when a load W is hanged from it. If the wire goes over
  4. A thin semicircular conducting ring (PQR) of radius r is falling with its plane
  5. Identify the pair whose dimensions are equal

Topics: Ray Optics (94)
Subject: Physics (2479)

Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score

18000+ students are using NEETLab to improve their score. What about you?

Solve Previous Year MCQs, Mock Tests, Topicwise Practice Tests, Identify Weak Topics, Formula Flash cards and much more is available in NEETLab Android App to improve your NEET score.

NEETLab Mobile App

Share this page with your friends

Be the first to comment

Leave a Reply

Your email address will not be published.


*