What is the nature of the image formed by a concave lens when the object is placed at infinity?

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Q: What is the nature of the image formed by a concave lens when the object is placed at infinity?

Solution: A concave lens always produces a virtual and upright image regardless of the object's position.

Steps: 6

Step 1: Understand what a concave lens is. A concave lens is thinner in the middle and thicker at the edges.
Step 2: Know that when an object is placed at infinity, the light rays coming from the object are parallel.
Step 3: When these parallel light rays pass through a concave lens, they diverge (spread out).
Step 4: The diverging rays appear to come from a point behind the lens. This point is where the virtual image is formed.
Step 5: Remember that a virtual image cannot be projected on a screen because it is formed by rays that do not actually converge.
Step 6: The virtual image formed by a concave lens is upright, meaning it has the same orientation as the object.