Question Text
Question 2 :
In order to reduce the loudness of a sound we have to
Question 3 :
Fill in the blank: Loudness is determined by the ______ of vibration.
Question 4 :
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?
Question 5 :
Noise pollution may cause partial hearing impairment. Is that correct ?
Question 8 :
Does the frequency of the voice of a child is higher than that of an adult?
