Answer: Option (b) is the correct answer.
Explanation:
It is known that when a ray of light tends to travel from a denser to rarer medium then there occurs total internal reflection.
For a denser medium the refractive index is greater than that of a rarer medium. This means that for the given situation refractive index of medium is greater than medium
.
this also means that incident angle must be greater than the critical angle of the medium.
Thus, we can conclude that the statement >
must be true for total internal reflection to occur.