Ray Optics and Optical Instruments - Result Question 13

13. A beam of light composed of red and green rays is incident obliquely at a point on the face of rectangular glass slab. When coming out on the opposite parallel face, the red and green rays emerge from

[2004]

(a) one point propagating in the same direction

(b) two points propagating in two different non-parallel directions

(c) two points propagating in two different parallel directions

(d) one point propagating in two different directions

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Answer:

Correct Answer: 13. (c)

Solution:

  1. (c) Since refractive index for both the light are different, so they emerge out moving in two different parallel directions.