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The adjacent figure shows cross section ...

The adjacent figure shows cross section of a hollow glass tube of internal radius `r_(1)`, eexternal radius R and index of refraction n. For two rays DE and ABC ( in which De lies on ODE and DE and BC are parallel), the separation `r_(1)` will be

A

`r_1=(n-1)R`

B

`r_1=n^2R`

C

`r_1-nr`

D

`r_1= n^2r`

Text Solution

Verified by Experts

The correct Answer is:
C
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