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A solid glass sphere of refractive index n= 3 and radius R contains a spherical air cavity of radius R 2 , as shown in the figure. A very thin glass layer is present at the point O so that the air cavity (refractive index n=1 ) remains inside the glass sphere. An unpolarized, unidirectional and monochromatic light source S emits a light ray from a point inside the glass sphere towards the periphery of the glass spher

Correct answer

0

Step-by-step solution

We added a condition θ > 30° to make this question clear for students, otherwise 0.5 and 0.75 both are correct answers aligned & = 3 & =60^ aligned aligned & 3 =1 =30^ & R 2 30^ = x 120^ & R 120^ = R 3 2 = 3 2 3 2 & = 3 4 aligned

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