Question

Four students showed the following traces of the path of a ray of light passing through a rectangular glass slab.; The trace most likely to be correct is that of student.; A. I; B. II; C. III; D. IV(All India - 2012)

Answer 1

Answer:

where is the figure ????

Answer 2

Answer:

C. III

Explanation:

Due to refraction of light inside the glass slab, the incident ray of light turns inwards of the slab and then again refracts at the other surface to obtain a beam of light parallel to the incident light.

Clearly IV is rejected since the outgoing beam is not parallel to the incident.

Also options I and II are rejected since the bending of light is finite and inwards unlike in the given options respectively.