The image formed by a mirror is virtual, erect and longer than the object, then the mirror will be
Show Hint
- convex mirror
- concave mirror
- plane mirror
- both convex and concave mirrors
The Correct Option is B
Solution and Explanation
Step 1: Understanding the image formation
A concave mirror can form a virtual, erect, and magnified image when the object is placed between the focus and the mirror. In such a case, the image appears larger (longer) than the object and is virtual and erect.
Step 2: Behavior of other mirrors
- A convex mirror always forms a diminished, virtual, and erect image, so it cannot satisfy the conditions of the problem.
- A plane mirror forms a virtual and erect image of the same size as the object.
Step 3: Conclusion
The only mirror that satisfies the conditions of forming a virtual, erect, and magnified image is the concave mirror.
\[
\boxed{\text{concave mirror}}
\]
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