A student performs the experiment on tracing the path of a ray of light passing through a rectangular glass slab for different angles of incidence. He measures the angle of incidence ∠i, angle of refraction ∠r and angle of emergence ∠e for all his observations. He would find that in all cases:(1) ∠i is more than ∠r but (nearly) equal to ∠e(2) ∠i is less than ∠r but (nearly equal to ∠e(3) ∠i s more than ∠e but (nearly) equal to ∠r(4) ∠i is less than ∠e but (nearly) equal to ∠r

A student performs the experiment on tracing the path of a ray of ligh

1.	A student performs the experiment on tracing the path of a ray of light passing through a rectangular glass slab for different angles of incidence. He measures the angle of incidence ∠i, angle of refraction ∠r and angle of emergence ∠e for all his observations. He would find that in all cases:(1) ∠i is more than ∠r but (nearly) equal to ∠e(2) ∠i is less than ∠r but (nearly equal to ∠e(3) ∠i s more than ∠e but (nearly) equal to ∠r(4) ∠i is less than ∠e but (nearly) equal to ∠r
Answer» A student performs the experiment on tracing the path of a ray of light passing through a rectangular glass slab for different angles of incidence. He measures the angle of incidence ∠i, angle of refraction ∠r and angle of emergence ∠e for all his observations. He would find that in all cases: (1) ∠i is more than ∠r but (nearly) equal to ∠e (2) ∠i is less than ∠r but (nearly equal to ∠e (3) ∠i s more than ∠e but (nearly) equal to ∠r (4) ∠i is less than ∠e but (nearly) equal to ∠r