Questions
Assume that the displacement (s) of air is proportional to the pressure difference created by a sound wave. Displacement (S) further depends on the speed of sound density of air and the frequency and then s will be of the order of ( take multiplicative constant to be 1)
detailed solution
Correct option is B
ΔP = BK S0 , B=Bulk modulus = ρV2⇒ΔP = ρV22πf S0V ∵K=ωV=2πfV]⇒S0 =ΔPρV2πfTake multiplicative constant "2π" as 1⇒S0 =101×300×1000=130mmSimilar Questions
The ratio of the speed of sound in nitrogen gas to that in helium gas, at 300 K is
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