Question

16. State the laws of refraction ? Give the meaning of refractive index ?


State the laws of Reflection ? What are Mirros ?​

Answer 1

Answer:

the laws of reflection in plane mirror are- the angle of incidence is equal to angle of reflection and the incident ray, normal and reflected ray lie in a same plane

Answer 2

Answer:

REFRACTION is the deviation of path of light when it travels from one transparent medium to the other transparent medium having different densities.

REFRACTIVE INDEX is the ration of the sin of angle of incidence in the first medium to the sin of angle of refraction in the second medium.

LAWS OF REFRACTION:

• THE NORMAL , POINT OF INCIDENCE AND THE POINT OF REFRACTION LIE IN THE SAME PLANE.
• THE SIN OF ANGLE OF INCIDENCE OF THE FIRST MEDIUM TO THE SIN OF ANGLE OF REFRACTION IN THE SECOND MEDIUM KS CONSTANT.

A mirror is a device which has the property of reflecting light.