contestada

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

Respuesta :

First find time period

[tex]\\ \bull\tt\longrightarrow Frequency=\dfrac{1}{Time\:Period}[/tex]

[tex]\\ \bull\tt\longrightarrow Time\:Period=\dfrac{1}{Frequency}[/tex]

[tex]\\ \bull\tt\longrightarrow Time\:Period=\dfrac{1}{256}=0.003s[/tex]

Now

[tex]\\ \bull\tt\longrightarrow No\:of\:times\:it\:vibrate=5(0.003)=0.015times[/tex]

Otras preguntas