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प्रश्न
What do you understand by the loudness of sound?
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उत्तर
Loudness is the property by virtue of which a loud sound can be distinguished from a faint one, both having the same pitch and quality.
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संबंधित प्रश्न
A person standing between two vertical cliffs and 480 m from the nearest cliff shouts. He hears the first echo after 3s and the second echo 2s later. Calculate:
1)The speed of sound.
2) The distance of the other cliff from the person
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.
Explain the mechanism of the formation of a longitudinal wave when the source vibrates in the air.
State three factors on which loudness of sound heard by a listener depends.
Name the characteristic of sound related to its frequency
Give scientific reason for the following:
Windows sometimes rattle when the low notes of a pipe organ are sounded.
How do you account for the fact that two strings can be used to give notes of the same pitch and loudness but of different quality?
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?
Two musical notes of the same pitch and loudness are played on a violin and a piano. Their waveforms are as shown in the figure below:
If ______ of sound is decreased, its loudness also decreases.
