Question

hello every one , any one can ans me this question



question -) in image find total deviation faced by the ray of light

Answer 1

here D1 is 150 degree
and D2 is 60 degree

Answer 2

D1 is 150° and D2 is 60° use the fact that

ang.i = Ang.r

and supplementary angles then it's a piece of cake.


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