Question

What is refraction? and what is the 2 laws of refraction?

Answer 1

Answer:

hange in direction of propagation of any wave as a result of its travelling at different speeds at different points along the wave front.

laws of refraction

1) the incident ray and the normal to the interface of two transparent medium at the point of incident all lie in the same plane

2) the ratio of sine of angle of incidence to the sine of angle of refraction is constant for the light of the given colour and for the given pair of media this law is also known as Snell's law of refraction

Answer 2

refraction is the change in direction of a wave passing from one medium to another or from a gradual change in the medium.

refractive index or index of refraction of a material is a dimensionless number that describes how fast light travels through the material. It is defined as. where c is the speed of light in vacuum and v is the phase velocity of light in the medium.

Total internal reflection when refraction reflection at critical angle and refraction takes place called TIR