Rakesh performs the experiments on tracing The path of a ray light passing through a rectangular glass slab for different angles of incidence .He observes than in all cases ∠i >∠r but ∠i =∠e ∠i < ∠r but ∠i =∠e ∠i > ∠e but ∠i =∠r ∠i < ∠e but ∠i = ∠r

Options

A. ∠i >∠r but ∠i =∠e
B. ∠i < ∠r but ∠i =∠e
C. ∠i > ∠e but ∠i =∠r
D. ∠i < ∠e but ∠i = ∠r