Question

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

The correct option is A shifted upward, such that distance between them remains same

the two dots are just shifted towards the slab due to shift observed , the distance between them doesn't change and due to the incline view of the slab they are shifted upwards .
option $A$ is correct