Optics Question 1020
Question: Wavelength of light of frequency 100Hz
[CBSE PMT 1999]
Options:
A) $ 2\times 10^{6}m $
B) $ 3\times 10^{6}m $
C) $ 4\times 10^{6}m $
D) $ 5\times 10^{6}m $
Show Answer
Answer:
Correct Answer: B
Solution:
$ \lambda =\frac{c}{\nu }=\frac{3\times 10^{8}}{100}=3\times 10^{6}m $