How long will it take for sound wave of 25 cm wavelength and 1.5 kHz frequency of, to travel a distance of 1.5km❓
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speed of sound = wavelength of sound wave × frequency of sound wave
given, wavelength = 25cm = 0.25m
frequency = 1.5 kHz = 1500 Hz
so, speed of sound = 0.25m × 1500Hz
= 375 m/s
time taken to travel a distance of 1.5km or 1500m by sound wave , t
t = distance/speed of sound wave
= 1500/375 = 4 sec
hence, time is required to travel 1.5 km distance by sound wave is 4 sec
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