Is the expression n=(sin((A+D)/(2)))/(sin(A//2)) true for all the positions of the prism?

Is the expression n=(sin((A+D)/(2)))/(sin(A//2)) true for all the posi

1.	Is the expression n=(sin((A+D)/(2)))/(sin(A//2)) true for all the positions of the prism?
Answer» SOLUTION :No. This EXPRESSION is TRUE for SYMMETRIC REFRACTION only.

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Is the expression n=(sin((A+D)/(2)))/(sin(A//2)) true for all the positions of the prism?

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