Question

what is total.imternal reflection​

Answer 1

Answer:

total internal reflection : Reflection of light from denser medium to raremedium..

angle of incidence is greater than critical angle.

Explanation:

there are different refractive index for different objects

for example diamond is 2.3

seen incidences/ applications in our daily life activities

• mirages
• luster/shining of diamonds
• cable wires
• fish in a pond is observed by a flying eagle in sky ,so eagle assumes/appears that fish is near to the surface of water (but it is apparent depth of fish assumed by eagle) but fish is not near to surface of water (real depth of fish)
• rainbow formation also includes/consists TIR(Total internal reflection.)

Answer 2

Answer:

When a ray of light travels from denser to rarer medium with angle or incidence greater than critical angle than the reflected ray instead of emerging out again goes to same medium. This phenomenon is known as total internal reflection