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Write an experiment to show the refractive index of the glassslab |
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Answer» tion:When a beam of light falls OBLIQUELY at the interface of the two OPTICAL media, direction of its path changes when it enters into the other medium. This phenomenon EXHIBITED by the light rays is called refraction of light. This is due to the change in speed of light while going from one medium to the other.cbse-class-10-science-practical-skills-refraction-through-glass-slab-1During the refraction, when light travels from one medium to another transparent medium, the speed and wavelength of light changes, whereas frequency REMAINS the same.When a light ray travels from rarer to denser medium, its speed gets slow down and the ray bends towards normal (∠i >∠r).When the ray of light travels from denser to rarer medium, its speed goes up and the ray bends AWAY from the normal (∠i < ∠r).From the above two points, we can conclude that the light bends on undergoing refraction. |
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