A ray of light is incident at the glass-water interface at an angle i, it emerges finally parallel to the surface of water, then the value of ng would be - VgyanHub

Question:

A ray of light is incident at the glass-water interface at an angle i, it emerges finally parallel to the surface of water, then the value of ng would be

Options :

(a) (4/3) sin i
(b) 1/sin i
(c) 4/3
(d) 1

Answer :

(b) 1/sin i

Answer Steps :

step 1

step 2

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