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प्रश्न
How is loudness related to the amplitude of wave?
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उत्तर
Greater the amplitude, greater is the loudness.
If we strike the drum gently, a faint sound is heard. But if we strike it hard, a loud sound is heard.
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संबंधित प्रश्न
The distance from one compression to nearest rarefaction is called wavelength.
If a drum is beaten hard, its loudness ................
Name the unit in which the loudness of sound is expressed.
Name and define the characteristic which enables one to distinguish two sounds of same loudness, but of different frequencies, given by the same instrument.
State the factors that determine
(a) the pitch of a note.
(b) the loudness of the sound heard.
(c) the quality of the note.
Explain the following and illustrate your answer by drawing appropriate diagram:
Pitch
How can one distinguish the sounds of two musical instruments even if they are of the same pitch and same loudness?
Which characteristics of sound will change if there is a change in its amplitude and its waveform.
The frequency of the stretched string of a fixed length is f when it is plucked in the middle. Where should it be plucked so that string vibrates with frequency (i) 2f, (ii) 3f?
Draw diagrams to show these vibrations and name them.
Give scientific reason.
In earlier times, people used to listen for the arrival of a distant train by putting their ear to the rail.
