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प्रश्न
Why is the loudness of the sound heard by a plucked wire increased when it is mounted on a sound board?
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उत्तर १
Because the board provides comparatively a large area and forces a large volume of air to vibrate and thereby increases the sound energy reaching our ears.
उत्तर २
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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
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- wavelength
- frequency and
- amplitude
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If the amplitude of a wave is doubled, what will be the effect on its loudness?
Name the unit in which loudness of sound is measured.
Explain the following and illustrate your answer by drawing appropriate diagram:
Loudness
What is meant by the ‘loudness’ of a sound? How is it related to the intensity?
The diagram below shows three ways in which the string of an instrument can vibrate.
(i) Which of the above diagrams shows the fundamental note?
(ii) Which has the frequency 4 times that of the fundamental?
(iii) State the ratio between the frequency of the first and second.
