Question

Sound wave 1 has a frequency of 200 Hz in a particular medium. Sound wave 2 has a frequency of 300 Hz in the same medium. By what factor does the speed of sound wave 2 differ compared to sound wave 1

Answer 1

wavelength is depend on the medium in which wave travels so, wavelength is constant for both frequency

v = f λ

v = speed of sound ; f = frequency ;   λ = wavelength

for sound wave 1 (v1 = speed of sound wave 1)   

v1 = 200 λ   

for sound wave 2 (v2 = speed of sound wave 2)   

v2 = 300 λ   

v2 / v1 = 300λ  / 200λ = 1.5

hence , speed of sound wave 2 is 1.5 multiple of speed of sound wave 1

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