A transparent solid cylindrical rod has a refractive index of 2/√3 It is surrounded by air. A light ray is incident at the mid- point of one end of the rod as shown in the figure,The incident angle for which the light ray grazes along the wall of the rod - VgyanHub

Question:

A transparent solid cylindrical rod has a refractive index of 2/√3 It is surrounded by air. A light ray is incident at the mid- point of one end of the rod as shown in the figure,The incident angle for which the light ray grazes along the wall of the rod

Options :

(a) sin-1 (1/2)
(b) sin-1 (√3/2)
(c) sin-1 (2/√3)
(d) sin-1 (1/√3)

Answer :

(d) sin-1 (1/√3)

Answer Steps :

step 1

step 2

step 3

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