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Amplitude

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Represent graphically by two separate diagrams in each case
(i) Two sound waves having the same amplitude but different frequencies.

(ii) Two sound waves having the same frequency but different amplitudes.
(iii) Two sound waves having different amplitudes and also different wavelengths. [3 Mark]

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Q. Consider the following sound waves marked A, B, C and D.

Figure

(a) Which two waves represent sounds of the same loudness but different pitch ?
(b) Which two waves represent sounds of the same frequency but different loudness ?
(c) State whether all these sound waves have been produced by the same vibrating body or different vibrating bodies ?
(d) Which vibrating body/bodies could have generated the sound waves shown here ?

Q. Represent the following on two different graphs in each case:
Case(i): Two sound waves having the same amplitude but different frequences. [1 Mark]
Case(ii): Two sound waves having the same frequency but different amplitudes. [1 Mark]
Case(iii): Two sound waves having different amplitudes and also different wavelengths. [1 Mark]

Q. Represent graphically by two separate diagrams in the case where two sound waves having the same amplitude but different frequencies :

Represent graphically by two separate diagrams in each case-

(iii) Two sound waves having different amplitudes and also different wavelength.

Q. Sounds produced by two different instruments have different frequencies but the same amplitude. Which of these attributes of sound vary?

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