A ray of light from air suffers partial reflection and refraction at the boundary of water as shown in the figure. In Fig, which of the ray is the correct refracted ray?

A

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B

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C

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D

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Solution

The correct option is A $B$
When light travels from a rarer to denser medium, the refracted ray bends towards the normal.
According to Snell's Law: $\frac{n_{2}}{n_{1}} = \frac{s i n θ_{1}}{s i n θ_{2}}$
Refractive index is higher in a denser medium hence angle of refraction in denser medium should be lesser than angle of incidence. Thus, option B.

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