Department of Pre-University Education, KarnatakaPUC Karnataka Science Class 12
Advertisement Remove all ads

When Light is Refracted into a Medium, - Physics

MCQ
Fill in the Blanks

When light is refracted into a medium, ______________ .

Options

  • its wavelength and frequency increase

  • its wavelength increases but frequency remains unchanged

  • its wavelength decreases but frequency remains unchanged

  • its wavelength and frequency decrease

Advertisement Remove all ads

Solution

its wavelength decreases but frequency remains unchanged

 

Frequency of a light wave, as it travels from one medium to another, always remains unchanged, while wavelength decreases.

Decrease in the wavelength of light entering a medium of refractive index \[\mu\] is given by

\[\lambda_M  = \frac{\lambda}{\mu}, \]

\[\text{where }\lambda_M  = \text{wavelength in medium}\]

\[\lambda = \text{wavelength in vacuum}\]

\[\mu = \text{refractive index}\]

Concept: Refraction and Reflection of Plane Waves Using Huygens Principle - Refraction at a Rarer Medium
  Is there an error in this question or solution?
Advertisement Remove all ads

APPEARS IN

HC Verma Class 11, 12 Concepts of Physics 1
Chapter 17 Light Waves
MCQ | Q 5 | Page 379
Advertisement Remove all ads
Advertisement Remove all ads
Share
Notifications

View all notifications


      Forgot password?
View in app×