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A ray of light enters a spherical drop o...

A ray of light enters a spherical drop of water of refractive index `mu` as shown in figure.

Q. An expression of the angle between incident ray and emergent ray (angle of deviation) as shown in figure.

A

`0^(@)`

B

`phi`

C

`alpha-phi`

D

`pi-4alpha+2phi`

Text Solution

Verified by Experts

The correct Answer is:
d.
`alpha=(phi-alpha)+theta`
`delta=pi-2theta=pi-4alpha+2phi`.
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