1.
The human ear responds to intensities in range
2.
Sound waves are produced by
3.
The loudness of sound varies directly with the vibrating body's
4.
The sensation of sound persists in our brain for about
5.
Sound energy passing per second through a unit area held perpendicular is called
6.
Sounds of frequency higher than 20,000 Hz which are inaudible to normal human ear are called
7.
The loudness and amplitude of sound varies
8.
The speed of sound varies with
9.
The scale to measure the intensity level of sound is called
10.
To find the speed of sound, we use the relation
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