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When a wave travelling from one medium i...

When a wave travelling from one medium is refracted into other medium, which of the following will not change?

A

Wavelength

B

Amplitude

C

Frequency

D

Velocity

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In vacuum, speed of light is v_(0) , frequency is n_(0) and wavelength is lambda_(0) . When a ray travels from one medium to another, the above physical quantities become v,n and lambda respectively. mu is refractive index of the medium. Which of the following statements are correct?

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