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As a light wave travels from one medium to another which of its following properties

As a light wave travels from one medium to another which of its following properties will change?

Options

(a) Speed and wavelength
(b) Frequency and wavelength
(c) Speed only
(d) Frequency, wavelength and speed

Correct Answer:

Speed and wavelength

Explanation:

During refraction, frequency of light remains constant but wavelength and speed change.

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