Question

Answer this properly “ Physics Newton ”

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Questions :-


1 ) Define The Principal focus of a Concave Mirror .

2 ) Define The Principal Focus of a Convex Mirror .

3 ) Define The Principal focus of a Concave Lens .

4 ) Define The Principal focus of a Convex Lens .​

Answer 1

Answer:

1. Light rays that are parallel to the principal axis of a concave mirror converge at a specific point on its principal axis after reflecting from the mirror. This point is known as the principal focus of the concave mirror.
2. The light rays that converge on the principal axis after reflecting from a convex mirror and are parallel to the principal axis are called principal focus of a convex mirror. They either actually in real meets or appears virtually to meet.
3. The principal focus of a convex lens is defined as the point on which the principal axis of the light is parallel to the principal axis that converges after the refraction from the lens. The principal focus of concave lens is when the light rays get diverged and appear to form a single point.
4. The principal focus of a convex lens is defined as the point on which the principal axis of the light is parallel to the principal axis that converges after the refraction from the lens. The principal focus of concave lens is when the light rays get diverged and appear to form a single point.

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Answer 2

Answer:

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