Science, asked by deepika1234557, 11 months ago

PQRS is a rectangular glass slab.
Find:-
a)The angle of incidence
b)angle r1
c)angle r2
d)the angle of emergence

friends i need the answer step by step please.....

this is from class 10 physics

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Answered by shreshthgupta0p92tlv

0

R1 ----15 and R2 will be 18

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