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प्रश्न
The safe limit of loudness of audible sound is
पर्याय
0 to 80 dB
above 80 dB
120 dB
above 120 dB
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उत्तर
0 to 80 dB
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संबंधित प्रश्न
The distance from one compression to nearest rarefaction is called wavelength.
The quality of a sound depends on the amplitude of wave.
Sound can not travel in
When sound travels in form of a wave
Name the characteristic of the sound affected due to a change in its
(a) amplitude (b) waveform (c) frequency.
State three factors on which loundess of sound heard by a listener depends.
Give scientific reason for the following:
Windows sometimes rattle when the low notes of a pipe organ are sounded.
When a gun is fired at a distance, why is it that the flash is seen almost instantaneously while the sound is heard a little later?
What is meant by the ‘pitch’ of a note? Does it depend on the loudness or ‘quality’ of the ‘note’? How is pitch ‘related’ with frequency?
Give scientific reason.
In earlier times, people used to listen for the arrival of a distant train by putting their ear to the rail.
