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# CBSE Class 9 Answered

Give Give {1}the graph of 2 sound waves having the same amplitude but different frequency and{2} graph of low pitched and high pitched sound
Asked by Yogesh Punetha | 28 Dec, 2011, 07:03: PM
Expert Answer
{1}the graph of 2 sound waves having the same amplitude but different frequency
roughly wave A and B have same amplitude. but B has more frequency than A as in same time period, more oscillations are produced in B.
in C the frequency is little smaller than B but amplitude is maximum.
frequency idea we get by the number of times the curve crosses the time axis, and amplitude idea we get from the height of the crest.
Answered by | 29 Dec, 2011, 12:47: PM

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