Physics, asked by hfgsym, 1 year ago

how many vibrations will a tuning fork of frequency 280hz complete during the time sound travels forward in air by 18m?take speed of sound=336m/s

Answers

Answered by sia1234
3
time=336/18=18.667s
no. of vibration =280×18.667=5226.76
Answered by prmkulk1978
8
Given :
 Speed of Sound=V=336m/s
wavelength =18m
Frequency =n=280hz

Speed= distance/time

time= distance/speed
=18/336 =0.05sec

Number of vibrations completed in 1 sec=280

Thus, number of vibrations completed in 0.05s
=280x0.05 
=14

∴Number of Vibration =14
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