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Q.

Which sound is shriller? Given reason, for waves A and B
 

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a

Sound A is shriller

b

Sound B is shriller than the sound A

c

Sound A is shriller than the sound B 

d

Sound B is shriller

answer is D.

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Detailed Solution

The sound A is shriller than the sound B. The reason is that time period of wave A is smaller than that of wave B i.e., frequency of wave A is more thatn than of wave B (Since frequency = 1/time period).
 

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Which sound is shriller? Given reason, for waves A and B