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प्रश्न
Name the unit used to measure the sound level.
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उत्तर
The decibel is the unit used to measure the sound level.
`1 "dB" = 1/10` th of bel.
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संबंधित प्रश्न
Comment on the statement 'loudness of sound is a subjective quantity, while intensity is an objective quantity.
By reducing the amplitude of a sound wave, its ______.
To increase loudness of sound by four times, how much should the amplitude of vibration be changed?
Define the following term.
Loudness
Does any part of our body vibrate when we speak? Name the part.
An alarm bell is kept inside a vessel as shown in the following figure. A person standing close to it can distinctly hear the sound of alarm. Now, if the air inside the vessel is removed completely, how will the loudness of alarm get affected for the same person?
The loudness of sound depends on the ______ of the sound wave.
Loudness equal to (or) greater than ______ can be painful to the ear.
Define:
Intensity
