A progressive wave $y = 10 s i n (2 t - 4 x)$ gets reflected along a rigid boundary as $y = 8 s i n (2 t + 4 x + π)$ under certain conditions

True

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False

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Solution

The correct option is A True
This statement is true, since the phase reversal has taken place and a part of the amplitude is lost to the rigid boundary and only 80% of the amplitude has got reflected

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y = 10 s i n (5 t - x)

y = A s i n (2 t - 5 x)

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When a travelling wave is reflected at a rigid boundary the reflected wave has ______, but reflection at an open boundary has ________.

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