Chapter - 3 Sound

Q&A -Ask Doubts and Get Answers



The sound from a mosquito is produced when it vibrates its wings at an average rate of 500 vibrations per second. What is the time period of the vibration?


Time period is defined as the time taken to complete one oscillation, which is the inverse of frequency.

It is given, wings vibrate 500 times in a second.

Frequency = frac{Number quad of quad oscillations}{Time quad period}

f = frac{500}{1} = 500 Hz

Time period is the inverse of frequency,

T = frac{1}{f}

T = frac{1}{500}

T = 0.002 sec

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