Question

a prism of refractive index 1.6 produces an angle of minimum deviation 40 calculate angle of glass prism​

Answer 1

Answer:

… where n is the refractive index, A is the prism angle, and D is the angle of minimum deviation. We can rearrange this to give:

Now we replace the right hand side of that equation using the trigonometric identity for the sine of a sum:

After substituting and dividing across by sin(A/2) we get:

Finally we can rearrange this to give:

All that remains is to fill in the given values, D=40°, n=1.6 to get the prism angle A=54.8°.

Explanation:

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