Question

Is there any thing called Total Internal Refraction (not reflection) ??? ​

Answer 1

Explanation:

The medium with the higher refractive index is commonly described as optically denser, and the one with the lower refractive index as optically rarer. Hence it is said that total internal reflection is possible for "dense-to-rare" incidence, but not for "rare-to-dense" incidence.

Answer 2

Answer:

The medium with the higher refractive index is commonly described as optically denser and the one with the lower refractive index as optically rarer. Hence it is said that total denser reflection is possible