InterviewSolution
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InterviewSolution
| 1. |
As shown, a narrow beam of light is incident onto a semi-circular glass cylinder of radius R. Light can exit the cylinder when the beam is at the centre. When the beam is moved parallel to a maximum distance d from the central line, no light can exit the cylinder from its lower surface. Find the refractive index of the glass. A. `(R)/(d)`B. `(d)/(R)`C. `(R)/(sqrt(R^(2)-d^(2)))`D. `(sqrt(R^(2)-d^(2)))/(R)` |
| Answer» Correct Answer - A | |