Question

please answer this question it is of physics
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Answer 1

no of vibrations = 33000

time taken =3 sec

a)frequency = no of vibraions in 1 second ( no of vib/time taken)

                   =  33000/3 =11000

so frequency = 11000.

b)these are called normal sounds

c)Yes it can be herd by humans because humans can hear sound between 20Hz to 20000Hz

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