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  • A ray of light is incident at an angle of incidence i, on one face of prism of angle A (assumed to be small) and emerges normally from the opposite face. If the refractive index of the prism is <im

A ray of light is incident at an angle of incidence i, on one face of prism of angle A (assumed to be small) and emerges normally from the opposite face. If the refractive index of the prism is \mu, the angle of incidence i is nearly equal to:

Option: 1

\mu A


Option: 2

\frac{\mu A}{2}


Option: 3

\frac{A}{\mu}


Option: 4

\frac{A}{2 \mu}


Answers (1)

best_answer

\\ Refractive \ index \\ \mu=\frac{\sin i}{\sin r}$ \\ $\mu=\frac{\sin i}{\sin A}$ \\ In case of small angle $\mu=\frac{i}{A}$ \\ $i=\mu A$

Posted by

seema garhwal

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