Question

A glass slab has two long parallel faces. Light ray is incident on the glass slab and trace of light ray is drawn. Now glass slab is shifted parallel to the parallel faces. What will be the effect on the trace of light?

• A. It will shift laterally
• B. Angle of deviation will change
• C. No effect
• D. Depends on amount of shift

Answer 1

Answer: (C)

No effect

Since thickness, angle of incidence and refractive index is same, there is no change in path of light ray.