Incident ray

Reflected ray

Point of incidence

Normal

Smooth surface

Rough suface

Speed of light in air or vacuum

Transparent material

Translucent material

Opaque material

the ray of light that falls on the surface of the reflection materials

the ray of light that comes from the pointwhen the incident ray falls on the reflection material

the point at which incident ray strikes the reflecting surface

perpendicular line drawn from the point of incidence to the plane of reflecting surface

specular reflection

diffused reflection

3 lakh km / second

objects that allow light to pass through completely

objects that allow light to pass through partially

objects that donot allow light to pass through