Question

state the law of refraction?give the meaning of refractive index?​

Answer 1

when light travel from one medium to another medium is called law of refraction.

refractive index is that when light or pencil is dipped in water it bends

Answer 2

the light to bend from its path ...when a ray of light nends from its original direction while travelling from one medium to another is called as refraction of light..