A ray of light travelling in air enters obliquely into water. Does the light ray bend towards the normal or away from the normal? Why?
ScienceClass 10CBSEAnswered 27 Mar 2026
Answer
Answer-
The light ray bends towards the normal. When a light ray enters from an optically rarer medium (which has a low refractive index) to an optically denser medium (which has a high refractive index), its speed slows down and bends towards the normal. As water is optically denser than air, a ray of light entering from air into water will bend towards the normal.
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