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A progressive wave travels in a medium M...

A progressive wave travels in a medium `M_(1)` and enters into another medium `M_(2)` in which its speed decreased to `75%`. What is the ratio of the amplitude of the
(a). Reflected and the incident waves , and
(b). Transmitted and the incident waves ?

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To solve the problem, we need to analyze the behavior of a progressive wave as it travels from one medium to another, particularly focusing on the reflected and transmitted waves. ### Given: - Speed of wave in medium \( M_1 \): \( v_1 \) - Speed of wave in medium \( M_2 \): \( v_2 = 0.75 v_1 \) ### (a) Ratio of the amplitude of the reflected and the incident waves: ...
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