Physics
A ray of light passes from medium 1 to medium 2. Which of the following quantities of the refracted ray will differ from that of the incident ray: speed, intensity, frequency and wavelength?
Refraction Plane Surfaces
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Answer
Speed, intensity and wavelength are the quantities which will differ for a refracted ray in comparison to those of a incident ray.
The frequency of light depends on the source of light, so it does not change on refraction.
When a ray of light gets refracted from a rarer to a denser medium, the speed of light decreases; while if it is refracted from a denser to a rarer medium, the speed of light increases.
When light passes from a rarer to a denser medium, the wavelength decreases and when it passes from denser to rarer medium, its wavelength increases.
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