Question

TICK THE CORRECT ANSWER:-

The point at which the incident ray touches the boundary separating the two media is known as:

a. point of incidence
b. refracted ray
c. optical centre
d. normal

Answer 1

Answer:

Explanation:

When the ray of light strikes normally, its angle of incidence is 0 and hence angle of refraction will also be 0 i.e. no deviation. hence correct option is A.

Answer 2

The point at which the incident ray touches the boundary separating the two medians is known as NORMAL LINE. D is the correct option