Q. A monochromatic beam of light passes from a denser medium into a rarer medium. As a result
A) Its velocity increases
B) Its velocity decreases
C) Its frequency decreases
D) Its wavelength decreases
Explanation
(a) $v \propto \frac{1}{\mu},\ \mu_{rarer} < \mu_{denser}$
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.