Question

After tracing the path of a ray of light passing through a rectangular glass slab for four different values of the angle of incidence, a student reported his observations in tabular form as given below:; The best observation is; A. I; B. II; C. III; D. IV(All India - 2014)

Answer 1

Answer:

coming

Explanation:

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Answer 2

Answer is Option "D"

Explanation:

• Observation IV will give the best result because it has the largest angle of incidence, due to which the lateral displacement between the incident ray and the emergent ray will be maximum for light rays passing through a glass slab
• Due to the angle of incidence and refraction we can say that the following method of displacement is related to the law of refraction of light to determine which angle is same or different
• hence, the the right answer is option D "IV"