Question

The refractive index of medium A is 1.54 and that of medium B is 2.12. Which statement is correct about this information?

A. a ray of light passing from medium A to B can undergo total internal reflection.

B. a ray of light passing from medium A to B will bend away from the normal.

C. a ray of light passing from medium A to B will bend toward the normal.

D. a ray of light passing from medium A to B can make a critical angel.

Answer 1

C. a ray of light passing from medium A to B will bend toward the normal.

Step-by-step explanation:

When a ray of light enters from one medium to another, it deviates from its path and bends away towards or away from the normal. The angle of incidence (i) and angle of refraction (r) are related by Snell's law:

`(sin i)/(sin r) =(n_2)/(n_1)`

The refracted ray bends away from normal when light enters from denser medium to rarer medium.

The refracted ray bends towards normal when light ray enters from rarer medium to denser medium.

In the given case, the refractive index of medium A is 1.54 and of B is 2.12. Ray of light enters from medium A to B i.e. from rarer medium to denser medium. Thus, the light ray would bend towards the normal when it enters medium B from A.

Answer 2

Out of the choices given, the statement that is correct about this information is a ray of light passing from medium A to B will bend toward the normal. The correct answer is C.