Question

Name the physical quantity which remains the same when light goes from one medium to another?

Answer 1

The frequency of the light ray remains same when it travels from one medium to another because it depends on the source of light. But the wavelength and speed vary because they depend on the medium through which the light passes.

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Answer 2

The frequency of the light ray remains same when it travels from one medium to another because it depends on the source of light. But the wavelength and speed vary because they depend on the medium through which the light passes

Hope it helps