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
A. ∠i is more than ∠r but (nearly) equal to ∠e
B. ∠i is less than ∠r but (nearly) equal to ∠e
C. ∠i is more than ∠e but (nearly) equal to ∠r
D. ∠i is less than ∠e but (nearly) equal to ∠r
Answer:A
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
A. ∠i is more than ∠r but (nearly) equal to ∠e B. ∠i is less than ∠r but (nearly) equal to ∠e C. ∠i is more than ∠e but (nearly) equal to ∠r D. ∠i is less than ∠e but (nearly) equal to ∠r
Explanation: ∠i and ∠e are same and angle r is less than angle i.