Optics Question 751
Question: Electromagnetic radiation of frequency n, wavelength $ \lambda $ , travelling with velocity v in air, enters a glass slab of refractive index $ \mu $ . The frequency, wavelength and velocity of light in the glass slab will be respectively
[CBSE PMT 1997]
Options:
A) $ \frac{n}{\mu },\frac{\lambda }{\mu },\frac{v}{\mu } $
B) $ n,\frac{\lambda }{\mu },\frac{v}{\mu } $
C) $ n,\lambda ,\frac{v}{\mu } $
D) $ \frac{n}{\mu }, $ $ \frac{\lambda }{\mu },v $
Show Answer
Answer:
Correct Answer: B
Solution:
Frequency does not change with medium but wavelength and velocity decrease with the increase in refractive index.
