The frequency of a light wave in a material is 2 x 10¹⁴ Hz and wavelength is 5000Å.

The Frequency Of A Light Wave In A Material Is Physics Question

The frequency of a light wave in a material is 2 x 10¹⁴ Hz and wavelength is 5000Å. The refractive index of material will be

Options

(a) 1.5
(b) 3
(c) 1.33
(d) 1.4

Correct Answer:

3

Explanation:

By using v = nλ , n = 2 x 10¹⁴ Hz
λ = 5000Å = 5000 x 10⁻¹⁰ m
v = 2 x 10¹⁴ x 5000 x 10⁻¹⁰ = 10⁸ m/s
Refractive index of the material,
µ = c / v = 3 x 10⁸ / 10⁸ = 3

Related Questions:

  1. A particle moves a distance x in time but according to equation x=(t+5)⁻¹
  2. Surface tension of a solution is 30 x 10⁻² N/m. The radius of the soap bubble is 5 cm
  3. Which logic gate is represented by the following combination of logic gate?
  4. The oscillation of a body on a smooth horizontal surface is represented by the equation
  5. A paramagnetic sample shows a net magnetisation of 0.8 Am⁻¹, when placed

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Your email address will not be published.


*