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प्रश्न
The unit of loudness is _______.
विकल्प
cm
second
hertz
decibel
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उत्तर
The unit of loudness is decibel.
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संबंधित प्रश्न
The lower the frequency of vibration, the higher is the pitch.
State the safe limit of sound level in terms of decibel for human hearing.
Explain the mechanism of the formation of a longitudinal wave when the source vibrates in the air.
Define the following term:
Frequency
Figure shows two jars A and B containing water up to different heights. Which will produce sound of higher pitch when air is blown on them?
Name musical instrument, one in each case, which produces its notes by using the following. In each case state the method used to produce notes of different pitches and loudness.
(a) A vibrating string.
(b) A vibrating column air.
(c) Vibration of any other body.
Name one main factor on which each character such as intensity, pitch, and quality of musical sound depends.
Give a scientific reason.
The sounds generated by a tabla and a sitar are different.
What does the intensity of sound depend upon?
