Refraction of light||#upbord||full chapter ||#Prakashkaapvartan||#studywithsatyam||#NCERTtutorial||
Channel: Apani Padhai
Date: 2020-05-05

hello friends
Refraction of light||UP bord 2021||UP board class 10 sceince||physics
what is refraction of light? the difference of between reflection and refraction, angle of refraction, the law of refraction and refractive index e.t.c
important topics are described in video.

let's start with, what is refraction?

Refraction
the change of direction of light because of the change of medium is known as refraction or refraction of light. The Ray of light changes its direction or phenomenon of reflection takes place because aap the difference in speed in medium.

the light travel at faster speed in rare medium and its lower speed in the denser medium. The nature of media is taken as relative. for example, The air  is rarer medium then water or glass.

The refraction of light refers to the change in direction of of a ray off light when it travells one medium to another. for example, the figure below shows a ray half fry travelling from a medium of air to that of water.

Refractive index