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Question

The speed of sound as measured by a student in the laboratory on a winter day is 340 m s1 when the room temperature is 17 C. What speed will be measured by another student repeating the experiment on a day when the room temperature is 32 C?


A

333ms

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B

340ms

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C

350ms

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D

None of these

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Solution

The correct option is C

350ms


Given at T = 17 C or 290 k

Speed was 340 ms

To find speed at T = 32 or 305 k

So velocity of sound and Temperature

Gives the relation

v=γRTM

vαT

v1v2=T1T2

340v2=290305

v2=350ms


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