Critical angle for the total internal reflection will be smallest for light travelling from
(a)water to glass
(b)glass to air
(c)glass to air
(d)water to air
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water to air
I hope it will help you
I hope it will help you
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The correct answer to this question is Option D) water to air.
The critical angle for the total internal reflection will be smallest for light travelling from water to air.
The critical angle is defined as the angle of incidence which is 90 degree.
If the angle of incidence is bigger than its critical angle, the refracted ray will be reflected back into the medium.
This is called as total internal reflection.
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