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An observer moves towards a stationary source of sound, with a velocity one fifth of the velocity of sound.

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asked Mar 30, 2018 in Physics by shabnam praween (19,050 points) ● 5 ● 6 ● 73

An observer moves towards a stationary source of sound, with a velocity one fifth of the velocity of sound. What is the percentage increase in the apparent frequency?

(1) zero

(2) 0.5%

(3) 5%

 (4) 20%

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answered Mar 30, 2018 by santoshjha (25,550 points) ● 4 ● 5 ● 7
selected Mar 30, 2018 by Vikash Kumar
 
Best answer

The correct answer is (4)

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