A sound wave has a frequency 2Hz and wave length 40cm. How long will it take to travel 1.6 Km.
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frequency = 2hz
wavelength = 40 cm = .4m
speed = frequecy × wavelength
= 2 × .4 = .8m/sec
now we have to find the time for 1.6 km or 1600 metres
speed = distance / time
.8 = 1600 / time
time = 2000 sec
wavelength = 40 cm = .4m
speed = frequecy × wavelength
= 2 × .4 = .8m/sec
now we have to find the time for 1.6 km or 1600 metres
speed = distance / time
.8 = 1600 / time
time = 2000 sec
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