What does TIR stand for?

Define TIR

What two conditions must be met for TIR?

Give an example of a condition where TIR will be observed

What are the uses of TIR?

How is TIR used in fibre optics?

How to calculate TIR?

How to calculate critical angle?

How to calculate TIR when the light passes through a medium into air?

Describe the relationship with refractive index and critical angles