Download the app

Questions  

A spherical source of power 4 W and frequency 800 Hz is emitting sound waves. The intensity of waves at a distance 200 m is

a
8×10−6 W/m2
b
2×10−4 W/m2
c
1×10−4 W/m2
d
4 W/m2

detailed solution

Correct option is A

Intensity = PowerArea=44π×(200)2=7.9×10−6  W/m2

Talk to our academic expert!

+91

Are you a Sri Chaitanya student?


Similar Questions

Two loud speakers are being compared, and one is perceived to be 32 times louder than the other. What will be the difference in intensity levels between the two when measured in decibels?


phone icon
whats app icon