Question

how to find the angle of deviation of a ray of light passing through prism ​

Answer 1

Answer:

By extending the incident ray and emergent ray we can obtain angle of deviation

Answer 2

The angle of deviation of a ray of light passing through prism ​is $i_{1}+i_{2}-A$.

Explanatioin :

Angle of deviation :

Angle of deviation is equal to the sum of incidence ray and emergent ray and subtract the angle of prism.

In mathematically term,

$\delta=i_{1}+i_{2}-A$

Where, $i_{1}$ =

$i_{2}$ =

A = angle of prism

Hence, The angle of deviation of a ray of light passing through prism ​is $i_{1}+i_{2}-A$.

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Topic : angle of deviation

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