Question

In an experiment to trace the path of a ray of light passing through a rectangular glass slab, the correct measurement of angles of incidence (i), refraction (r) and emergence (e) is shown in the diagrams.
1 point
Captionless Image
A
B
C
D​

Answer 1

Answer:

Option B Is Correct

Explanation:

Answer 2

Option A is the correct diagram for measurements of angles.

What is refraction?

• The particle property of light due to which light bends from its actual path while passing through different mediums is called refraction of light.
• Refraction happens due to different densities of medium.
• While propagating from mediums of rarer density to denser, light ray slows down and it bends towards normal.
• While propagating from denser to rarer, ray of light gats faster and bends away from normal.

Angle of incidence:

• Angle made by incident ray with the normal (perpendicular imaginary line) is called angle of incidence.

Angle of refraction:

• Angle made by refracted ray with the normal (perpendicular imaginary line) is called angle of refraction.

Angle of emergence:

• Angle made by emergent ray with the normal (perpendicular imaginary line) is called angle of emergence.