Which of the following is not due to total internal reflection?
Brilliance of diamond
Working of optical fibre
Difference between apparent and real depth of a pond
Mirage on hot summer days
Difference between apparent and real depth of a pond is only because of refraction of light, but not because of total internal reflection. On the other hand, brilliance of diamond, formation of mirage on hot summer days and working of optical fiber are based on total internal reflection.