Q84 of 123 Page 256

A musical instrument is producing a continuous note. This note cannot be heard by a person having a normal hearing range. This note must then be passing through:

This note must then be passing through vacuum.

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82

Sound can travel through:

 83

Which of the following vibrates when a musical note is produced by the cymbals in an orchestra?

 85

Which of the following sound frequencies can be heard by a woman having a normal hearing range?

A) 25000 Hz


B) 15kHz


C) 40000 Hz


D) 25Hz

 86

When we change a feeble sound to a loud sound, we increase its: