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  • When the wave travels from denser medium to rarer mediumOption: 1 speed of wave increasesOption: 2</str

When the wave travels from denser medium to rarer medium

Option: 1

speed of wave increases


Option: 2

wavelength of wave decreases


Option: 3

amplitude of wave increases


Option: 4

there is no change in phase angle


Answers (1)

best_answer

A_t=\left(\frac{2 v_2}{v_1+v_2}\right) A_i

\text { If An } v_2>v_1 \text {, then } A_t>A_i 

Since,U=f\lambda and frequency being a property of the source, the wavelength must also increases. There would also be no phase change

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vinayak

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