A sound wave has a frequency of 4 khz and a wavelength of 40 cm. The time taken by the sound wave to travel a distance of 3.2 km is
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Answer:
distance = 3.2 km
frequency = 4 hz
ladma = 0.4 m
velocity = 0.4×4 = 1.6 m/sec
time = d/v
3.2/1.6 = 2sec
Explanation:
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