Define the terms :incident ray, reflected ray and normal ray

1.	Define the terms :incident ray, reflected ray and normal ray
Answer» \tIncident ray: A ray of light from a source that falls on the surface is called an incident ray of light.\tReflected ray: The ray of light that bounces back from the surface of an object is called a reflected ray of light.\tNormal at point of incidence: A line drawn perpendicular on the surface (i.e. making 90° angle with the surface) of an object at the point of incidence is called a normal point of incidence.

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