Physics, asked by nazaraparveen123, 6 months ago

source of sound produces 20 crests and 20 troughs in 4 seconds. The second crest is 3 cm away from the first crest. The velocity of the wave will be.....​

Answers

Answered by Charmcaster
7

Explanation:

frequency is 20/4 = 5Hz

wavelength is 3cm

velocity is frequency*wavelength

v= 3*5= 15 cm/s

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