A prism ABC of angle `30^(@)` has its face AC silvered. A ray of light incident at an angle of `45^(@)` at the face AB retraces its path after refraction at face AB and reflection at face AC . The refractive index of the material of the prism is A. 1.5B. `(3)/(sqrt2)`C. `sqrt2`D. `(4)/(3)`

A prism ABC of angle `30^(@)` has its face AC silvered. A ray of light

1.	A prism ABC of angle `30^(@)` has its face AC silvered. A ray of light incident at an angle of `45^(@)` at the face AB retraces its path after refraction at face AB and reflection at face AC . The refractive index of the material of the prism is A. 1.5B. `(3)/(sqrt2)`C. `sqrt2`D. `(4)/(3)`
Answer» Correct Answer - c

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A prism ABC of angle `30^(@)` has its face AC silvered. A ray of light incident at an angle of `45^(@)` at the face AB retraces its path after refraction at face AB and reflection at face AC . The refractive index of the material of the prism is A. 1.5B. `(3)/(sqrt2)`C. `sqrt2`D. `(4)/(3)`

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