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Two waves, each having a frequency of 10...

Two waves, each having a frequency of 100 Hz and a wavelength of 2.0 cm, are travelling in the same direction on a string. What is the phase difference between the waves if the second wave was produced 0.015 s later than the first one at the same place,

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The correct Answer is:
(a) `2pi` , (b) `pi` , (c) `4.0 mm`, zero
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RESONANCE ENGLISH-TRAVELLING WAVES-Exercise- 1 PART I
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