Chapter 10 • Question 2
Name a mirror that can give an erect and enlarged image of an object.
Q2
Name a mirror that can give an erect and enlarged image of an object.
Answer Revealed
Direct Answer: A concave mirror gives an erect and enlarged image when the object is placed between the pole and the principal focus.
Simple Explanation
A concave mirror can show you a bigger, upright image — like when you look into a shaving mirror up close.
Exam-Ready Structure
A concave mirror produces an erect and enlarged (magnified) virtual image when the object is placed between the pole (P) and the principal focus (F) of the mirror. Under these conditions: 1. The image formed is virtual (behind the mirror) and cannot be obtained on a screen. 2. It is erect (upright) relative to the object. 3. It is magnified (larger than the object). 4. Common applications include shaving mirrors, makeup mirrors, and dentist's mirrors where a magnified view of the face or teeth is needed.
Key Points
- Concave mirror when object is between P and F
- Image is virtual, erect, and magnified
- Used in shaving mirrors and dentist mirrors
Common Mistakes
- Saying convex mirror gives an enlarged image (convex always gives diminished images)
- Forgetting to specify the object position (between P and F)