Optics Question 1026
Question: The ratio of intensities of two waves are given by 4 : 1. The ratio of the amplitudes of the two waves is
[CBSE PMT 1993]
Options:
A) 2 : 1
B) 1 : 2
C) 4 : 1
D) 1 : 4
Show Answer
Answer:
Correct Answer: A
Solution:
$ I\propto a^{2} $
Therefore $ \frac{a _{1}}{a _{2}}={{( \frac{4}{1} )}^{1/2}}=\frac{2}{1} $
