Question

a source of sound produces 20 compression and 20 rarefaction in 0.2second . The distance between a compression and the next (consecutive) rarefaction is50cm. Find the wavelength, frequency, and time period of the wave

Answer 1

wavelength=50×2=100cm
frequency=no.of oscillations÷ time taken
f=20÷0.2=100Hz
Time period=1÷f
Time period=1÷100
time period= 0.01 s-1(it is second inverse)
Hope it hrlps!