Question

What is total internal reflection,reflections and refraction

Answer 1

total internal reflection is the phenomena in which Ray of light travelling at an angle greater than critical angle from denser to rarer medium is totally reflected back into denser medium

reflection is the phenomena of bouncing Back of the light

Refraction is when light travells from rarer nedium to denser medium and got refracted.

Answer 2

Regular reflection :- the bouncing of light from smooth surface.

diffuse reflection:- the bouncing of light into different direction from rough surface

Reflection :- the single bouncing of light called reflection.

TOTAL internal reflection:- first refraction then reflection at critical angle then again refractions called total internal reflection.

ex :- rainbow