Question

9. A student does the experiment on tracing the path of a ray of light passing through a rectangular glass
slab for different angles of incidence. He can get a correct measure of the angle of incidence and the
angle of emergence by following the labelling indicated in figure:​

Answer 1

Answer:

option D

as angle is measured btw light Ray and normal to the surface

Answer 2

Answer: The correct answer is option D.

Explanation:

• Angle of incidence(i) - The angle that the incident ray of light makes with the normal.
• Angle of emergence(e) - The angle that the emergent ray of light makes with the normal.
• In the given options, option D shows the correct labelling as both the angles are made with the normal.

Thus, option D, can get a correct measure of the angle of incidence and the angle of emergence.

#SPJ3