Question

Which of the following is a magnifying glass?

• A. Concave mirror
• B. Concave lens
• C. Convex lens
• D. None of these

Hint:

Convex lenses are converging lenses. When used properly, they enlarge small objects for detailed viewing.

Answer 1

The Correct Option is C

Step 1: Conceptual Understanding: 
A magnifying glass is an optical device used to see small objects clearly by producing an enlarged image. 
Step 2: Lens Behavior: 
A concave lens always produces diminished images, so it cannot magnify. 
A concave mirror can magnify when the object is placed between pole and focus, but it is not commonly used as a magnifying glass. 
A convex lens (converging lens) produces a virtual, erect, and magnified image when the object is placed between the focus and the lens. This is exactly the working principle of a magnifying glass. 
Step 3: Example: 
The convex lens bends parallel rays inward, making objects appear larger. This is why it is used in magnifying glasses and microscopes. 
Step 4: Final Answer: 
The magnifying glass is a Convex lens.