In vacuum, to travel distance d, light takes time t and in medium to travel distance

In Vacuum To Travel Distance D Light Takes Time T Physics Question

In vacuum, to travel distance d, light takes time t and in medium to travel distance 5d, it takes time T. The critical angle of the medium is

Options

(a) sin⁻¹(5T/t)
(b) sin⁻¹(5t/3T)
(c) sin⁻¹(5t/T)
(d) sin⁻¹(3t/5T)

Correct Answer:

sin⁻¹(5t/T)

Explanation:

In vacuum, c = d / t

In medium, v = 5d / T

As refractive index , μ = c / v = (d/t) / (5d/T) = T / 5t

Also, sin C = 1 / μ [If C is critical angle]

Therefore, C = sin⁻¹ [5t / T]

Related Questions:

  1. A certain mass of Hydrogen is changed to Helium by the process of fusion
  2. The energy of groundstate (n=1) of hydrogen level is -13.6 eV. The ionistation
  3. A car of mass m is moving on a level circular track of radius R
  4. What determines the nature of the path followed by the particle?
  5. A solid cylinder of mass 50kg and radius 0.5 m is, free to rotate about the horizontal axis

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Your email address will not be published.


*