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7 February, 06:48

A ray of light passes from air into

water with an angle of incidence of

30

o. Which of the following quantities

does not change as the light enters the

water ...

a) Wavelength

b) frequency

c) speed of propagation

d) direction of propagation.

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Answers (1)
  1. 7 February, 10:14
    0
    The frequency doesn't change as the wave crosses

    the boundary between one medium and another.
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