Write the necessary conditions for TIR to occurs
Hey,
TIR is Total International Reflection is a phenomenon in which there is complete reflection of ray of light within a medium from the surrounding surface back into the initial medium.
There are two conditions which must be met for TIR to occur:
1.The light ray must travel from denser medium to lesser medium
2. The angle of incidence of the light ray must be greater than critical angle of the interface