The intensity ratio of waves is 25 : 9. What is the ratio of their amplitudes?
A. 50 : 18
B. 25 : 9
C. 3 : 5
D. 5 : 3
Answer: Option D
Solution(By Examveda Team)
In general, the intensity of a wave is proportional to the square of its amplitude. This has an important implication: relative intensity can be obtained by squaring relative amplitude.I α a2
So if the intensity ratio is 25:9, the amplitude ratio will be 5:3.
This Question Belongs to General Knowledge >> Physics
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