As a wave passes from one medium to the other, it is observed that the speed has decreased to half of the original value. What happens to its wavelength and frequency ?
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The speed of a wave depends upon (i.e., is causally affected by) ... d. both the wavelength and the frequency of the wave. Whenever the medium is the same, the speed of the wave is the same. However, when the medium changes, the speed changes.
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