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A ray of light falls on a transparent sphere with centre at C as shown in figure. The ray emerges from the sphere parallel to line AB. The refractive index of the sphere is
detailed solution
Correct option is B
Deviation by a sphere is 2(i - r)Here deviation δ = 60° =2 (i - r)or i - r=30°∴ r = 60° - 30° = 30°∴μ=sin isin r=sin 600sin 30o=3Talk to our academic expert!
Similar Questions
A convex lens is at a distance of 10 cm from a convex mirror of focal length 10 cm as shown in figure. A beam of light parallel to the principal axis is incident on the tens. After refraction through the lens, reflection at the mirror and again refraction through the lens, the final emergent beam refraces the path of the incident beam then focal length of the lens is
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