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प्रश्न
Explain the following and illustrate your answer by drawing appropriate diagram:
Loudness
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उत्तर
Loudness: 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. The loudness of a sound depends on the amplitude (or intensity) of the wave.
Soft and loud notes
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संबंधित प्रश्न
If the amplitude of vibration is large, sound is feeble.
Name one property of waves that do not change when the wave passes from one medium to another.
When sound propagates in air, it does not carry energy with it.
The frequency is measured in second.
Sound can not travel in
Name the unit in which the loudness of sound is expressed.
Standing at a distance, how is it possible to detect the filling of bucket under a water tap by hearing the sound?
How is it possible to detect the filling of a pitcher under a tap by hearing its sound at a distance?
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?
A 0.6 m long stretched wire is made to vibrate in two different modes as shown in figure
(a)
(b)
(i) If the frequency of the note produced in (b) is n, what is the frequency in case (a)?
(ii) In which case (a) or (b), is the note louder? Give reasons.
(iii) In which case is the pitch higher? Give reason.
