Correct option is D
Tha Correct Answer is: (d) At F (Focus)
Explanation:
When a beam of parallel rays close to the principal axis is incident on a convex lens (converging lens):
Convex Lens and Convergence of Light Rays:
A convex lens (also called a converging lens) is a transparent optical device that bends and focuses incoming light rays to a single point due to refraction.
It is thicker in the middle and thinner at the edges.
Information booster: Key Concepts:
- Principal Axis: An imaginary straight line passing through the center of the lens and perpendicular to its surface.
- The geometric center of the lens through which light passes without deviation.
- Principal Focus (F): The point where parallel rays of light converge (in the case of a convex lens).
Additional Information :.
: At 2F – Rays parallel to the principal axis do not converge at 2F. Instead, rays coming from a point at 2F on one side will converge at 2F on the other side.
: Between F and 2F – This position is where an object placed at this point would form a real, inverted, and magnified image beyond 2F.
: Beyond 2F – Parallel rays never converge beyond 2F.
English
100 Questions
100 Marks
90 Mins
