Q.

The intensity of a wave is
a) Proportional to square of the frequency
b) Proportional to the velocity of wave
c) Proportional to the density of the medium
d) Proportional to the square of the distance of the source from the observer

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a

only d is true

b

a & b are true

c

a, b & c are true

d

a,b,c & d are true

answer is C.

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Detailed Solution

 Intensity of wave is I=2π2μv2f2

μ is the linear mass density 

f is the frequency 

v is the velocity 

A is the amplitude 

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