When a wave moves from one medium to another medium frequency remains same. What law is this?
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➡Light is refracted when it crosses the interface from air into glass in which it moves more slowly.
➡Since the light speed changes at the interface, the wavelength of the light must change, too.
➡ The wavelength decreases as the light enters the medium and the light wave changes direction.
➡The frequency, wavelength, and speed are related by:
➡Velocity = wavelength x frequency
➡Since the light speed changes at the interface, the wavelength of the light must change, too.
➡ The wavelength decreases as the light enters the medium and the light wave changes direction.
➡The frequency, wavelength, and speed are related by:
➡Velocity = wavelength x frequency
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