Is it possible to describe two situations of total internal reflection in a right angled isosceles glass prism?

Write any five application of total internal reflection and explain.

The application of total internal reflection are as follows:

1. To deviate a ray of light through 90.

A totally reflecting prism is used to deviate the path of ray of light through 90, when it is inconvenient to view the direct light. In Michelson's method to find the velocity of light, the direct viewing by making use of totally reflecting prism.

2. To deviate a ray of light through 180.

By deviating a ray of light through 180, totally reflecting prisms are used in prism binoculars to produce an...

To a fish under water viewing obliquely, a fisherman standing on the bank of a lake , does the man look taller or shorter that what he actually is ? 

To a fish viewing obliquely from underwater, the fisherman standing on the bank of a lake appears taller than he actually is. This is due to the refraction of light at the water-air interface, causing the fish to perceive an apparent upward displacement of the image.

How would you obtain: anisole from phenol?

iii.                 Why a black hole is called the point of no return?

Let us imagine, we are in a spaceship that is somehow passing through the circumference into the horizon, slowly, as the time there runs differently than the people who are currently living on Earth. Now, at this point in time, we will be attracted to the horizon, most likely, but for now somehow, just imagine we didn’t get pulled by the Horizon as we are having a higher escape velocity than that of the horizon. Now once we get past the horizon into the mass of the black hole, we will be...