Hi Akash,

Laws of refraction of light are as follows.

1) All the rays, Normal Ray, refracted Ray, and incident ray , to the interface of the 2 media at the point of incidence, lies in the same plane.

2) Ratio of the sine the angle of incidence to ratio  sine of the angle of refraction is constant for the light of the given colour and given pair of media.

Use of this in daily life is:-

1) Seeing a fish underwater is an example of refracted light in daily life.

2) Camera in camera lens is an example of refracted lights which produces an opposite image.

I hope your question has been answered properly.

All the best for your future!