A turning fork vibrates at 256 Hz. How many times does one of its prongs vibrate back and forth in 5 seconds

asked Apr 9, 2022 125k views

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5 votes

First find time period

$\\ \bull\tt\longrightarrow Frequency=(1)/(Time\:Period)$

$\\ \bull\tt\longrightarrow Time\:Period=(1)/(Frequency)$

$\\ \bull\tt\longrightarrow Time\:Period=(1)/(256)=0.003s$

Now

$\\ \bull\tt\longrightarrow No\:of\:times\:it\:vibrate=5(0.003)=0.015times$

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