Question

.
i) A glass slab made of a material of refractive index n1 is kept in a medium of
refractive index n2 and n1>n2. With this information complete the diagrams
given below:
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Answer 1

Answer:

in case a the ray goes parallel in the opposite side in case B the ray goes strait and in the third case the ray moves parallel to the opposite side

Explanation:

as in case B the ray goes in 90 degree so it goes strait it is an exceptional casep