Question

Define
the following terms
a. Incident
ray
b.
Normal
d
Reflacted ray​

Answer 1

Answer:

a. incident ray:- A light ray is a line (straight or curved) that is perpendicular to the light's wavefronts; its tangent is collinear with the wave vector. Light rays in homogeneous media are straight. They bend at the interface between two dissimilar media and may be curved in a medium in which the refractive index changes. Geometric optics describes how rays propagate through an optical system. Objects to be imaged are treated as collections of independent point sources, each producing spherical wavefronts and corresponding outward rays. Rays from each object point can be mathematically propagated to locate the corresponding point on the image.

b.normal ray:- When a line is drawn perpendicular to the reflecting surface at the point of incidence, this line is known as normal. It is the imaginary line which is perpendicular to the reflecting surface. The normal ray is incident at 90 degrees to the reflecting surface.

c.reflected ray:- A ray of light or another form of radiant energy that is thrown back from a nonpermeable or nonabsorbing surface is called reflected ray. The ray of light that bounces back from the surface of reflection is called the reflected ray. All the rays the incident, normal and reflected lie on the same plane.

Explanation:

PLS MARK ME AS BRAINLIST ANSWER

Answer 2

Incident ray: The light ray, which strikes any surface, in the same medium is called incident ray.

Normal ray: The line is drawn perpendicular to the reflecting surface at the point of incidence is called normal ray.

Reflected ray: The ray that comes back from the surface after reflection is known as reflected ray.