Question

When a ray of light traveling in a (A) Medium, is incident at the surface of a (B) Medium such that angle if incidence is (C) than the critical angle for the pair of media, the ray is totally reflected back into the (D) medium. This phenomenon is called total internal reflection.

• A. A=rarer
  B=denser
  C=smaller
  D=rarer
• B. A=denser
  B=rarer
  C=greater
  D=denser
• C. A=rarer
  B=denser
  C=greater
  D=rarer
• D. A=denser
  B=rarer
  C=smaller
  D=denser

Answer 1

The correct option is B A=denser

B=rarer
C=greater
D=denser

There are two conditions for Total Internal Reflection.

(1)The incident ray should be in denser medium.

(2)The angle of incidence should be greater than critical angle of the medium.