Physics, asked by hariprasad2464p5dcjq, 1 year ago

A sound wave in air has a frequency of thousand hertz and a wavelength of 84 cm how long it will take to travel 1 km

Answers

Answered by n392959gmailcom
1

V=velocity
n= frequency
l=laimda
we know that
V=nl
V=1000*.84m=840m/s
so to travel 1000m it needs=1000/840=1.19seconds

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