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प्रश्न
State three factors on which loudness of sound heard by a listener depends.
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उत्तर
THREE FACTOR FOR LOUDNESS OF SOUND:
- Surface area of the sounding body. i.e. is directly proportional to the surface area of vibrating body.
- On the distance of the source of sound, i.e. decreases with distance.
- On amplitude of wave i.e. increases with amplitude.
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संबंधित प्रश्न
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Explain the following and illustrate your answer by drawing appropriate diagram:
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Explain the following and illustrate your answer by drawing appropriate diagram:
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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.
