A ray of light travels from a denser to a rarer medium After refraction, it bends away from the - Physics - Light Waves

Question

A ray of light travels from a denser to a rarer medium After
refraction, it
bends away from the normal When we keep
increasing the angle of incidence, the angle of refraction also
increases till the refracted ray gazes
along the interface of two media The angle of incidence for which
it happens is called critical angle If the angle of incidence is
increased further the ray
wil not emerge and it will be reflected back in the denser medium
This phenomenon is called total internal reflection of light

(i) A ray of light travels from a medium into water at an angle of
incidence of 18 °
The refractive index of the medium is more than that of water
and the critical angle for the interface between the two media is
20 °
Which one of the following figures best represents the correct path
of
the ray of light?

Debalina Deb · Accepted Answer

Solution
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style="width: 1021px; height: 320px;">