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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 and b are true

c

a, b and c are true

d

a, b, c and d are true

answer is C.

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Detailed Solution

detailed_solution_thumbnail

The intensity of a wave is given as 

I = 2π2μvA2ϑ2

Where 

μ is the density

ϑ is the frequency

v is the velocity

A is the amplitude

Therefore, statements a, b and c are true

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