Question

For a convex lens magnification of virtual image is possible only when the object distance is

• A. equal to F
• B. greater than F
• C. less than F
• D. none of the above

Answer 1

The Correct Option is C

To solve the problem, we need to understand the condition for the formation of a virtual image using a convex lens.

1. Understanding the Formation of Virtual Image:
For a convex lens, a virtual image is formed when the object is placed closer to the lens than its focal point (i.e., when the object distance is less than the focal length).

2. Conditions for Virtual Image:
When the object is placed at a distance less than the focal length ($d_o < F$), the rays from the object diverge after passing through the lens, and the extended rays form a virtual image on the same side as the object.

Final Answer:
For a convex lens, magnification of the virtual image is possible only when the object distance is $ {\text{less than } F} $.