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प्रश्न
Name the unit in which the loudness of sound is expressed.
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उत्तर
Unit of the loudness of sound is expressed in decibel(dB)
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संबंधित प्रश्न
State the safe limit of sound level in terms of decibel for human hearing.
A person is standing at the seashore. An observer on the ship which is anchored in between a vertical cliff and the person on the shore fires a gun. The person on the shore hears two sounds, 2 seconds and 3 seconds after seeing the smoke of the fired gun. If the speed of sound in the air is 320 ms-1 then calculate:
1) the distance between the observer on the ship and the person on the shore.
2) the distance between the cliff and the observer on the ship.
State three factors on which loudness of sound heard by a listener depends.
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When a nail is hammering appears to get higher and higher in pitch.
What is meant by the ‘loudness’ of a sound? How is it related to the intensity?
Give scientific reason.
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Give scientific reasons.
In earlier times, people used to listen for the arrival of a distant train by putting their ear to the rail.
