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A ray of light on a transparent sphere w...

A ray of light on a transparent sphere with centre C as shown in the figure. The ray emerges from sphere parallel to line AB. The refractive index of sphere is

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Verified by Experts

Deviation by a sphere is `2(i-r)`
Here, deviation `delta=60^@=2(i-r)`
or `i-r=30^@`
`rArr r=i-30^@=60^@-30^@=30^@`
`:.mu=(sini)/(sinr)=(sin60^(@))/(sin30^(@))=sqrt(3)`
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CENGAGE PHYSICS ENGLISH-GEOMETRICAL OPTICS-Exercise1.5
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  9. There is small air bubble inside a glass sphere (mu=1.5) of radius 10 ...

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