Question

Define:
(1) beam of parallel rays
(2)beam of convergent rays
(3)beam of divergent rays​

Answer 1

Explanation:

Beam of parallel rays:

A beam of parallel rays is brought to focus by a plano-convex lens a thin concave lens of the same focal length is join to the first lens lens the effect of this is :

(A): the focus shift to infinity

(B):the focal points shifts toward by a small distance

(C): the focal points shift away from the lens by

small distance

(D): the focus remained undisturbed

Beam of convergent rays:

light rays comes together after reflection and refraction at a single point known as the focus divergent beam of light light rays from a point source of light travel in all directions moving away with time such a beam of light is called a divergent beam of light

Beam of divergent rays:

light rays from a point source of light travel in all directions moving away with time

Answer 2

Answer:

Explanation:

The ray of light that hits the polished surface is called the incident ray. The ray that gets reflected away is called the reflected ray. The point at which the light hits the surface is called the point of incidence. If a line is drawn perpendicular to that point, it is called the normal.