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For the plane wave y = 2.5 xx 10^(0.02x)...

For the plane wave `y = 2.5 xx 10^(0.02x) cos (800t- 0.82 x + frac{pi}{2})` , write down the change in phase at a given place 0.6 milli second. Take units of y, t, x as `10^-5 cm` , s and m respectively.

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SL ARORA-Waves-EXERCISE
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