Question

The observer at O views two closely spaced spots on a vertical wall through an angled glass slab as shown in figure. As seen by observer, the spots appear

A. shifted upward, such that distance between them remains same
B. shifted downward, such that distance between them remains same
C. spaced farther apart
D. spaced closer together

Answer 1

Correct Answer - a.
Emergent ray e will be parallel to incident ray i. So both dots will appear to be shifted upward by same distance. Hence, distance between them remains same.