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A sound wave of frequency 660 Hz inciden...

A sound wave of frequency 660 Hz incidents normally on a perfectly reflecting object. If the speed of sound in air is `330 ms^(-1)`, what is the shortest distance from the wall at which the wave particles have (a) the maximum and (b) the minimum displacement gt

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(a) 12.5 cm, (b) zero
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PEARSON IIT JEE FOUNDATION-WAVE MOTION AND SOUND-CONCEPT APPLICATION (LEVEL-2)
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