A ray of light strikes a glass slab at an angle of 90 degree. What is the angle of incidence and refraction. An some one pls explain me this question??
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See it depends on refractive index of vacuum and in air , in denser they are they refracts more
in denser medium light rays move away from the normal while in the air medium it moves towards the normal
in denser medium light rays move away from the normal while in the air medium it moves towards the normal
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