Physics
Draw separate diagrams for the formation of virtual image of an object by
(a) a concave mirror and
(b) a convex mirror.
State the difference of the two images.
Answer
(a) When an object is placed between the pole and focus of a concave mirror, the image is formed behind the mirror. A virtual, erect and enlarged image of the object is formed.
(b) In convex mirror for the object placed at finite distance, the image formed is always virtual, erect, diminished and it is formed between pole and focus of the mirror.
| Sl. No. | Virtual Image of Concave mirror | Virtual Image of Convex mirror |
|---|---|---|
| 1. | Image is enlarged. | Image is diminished and if the object is at infinity then image is diminished to a point. |
| 2. | Image is formed behind the mirror between the pole and focus. | Image is formed between pole and focus. But if the object is at infinity then image is formed at the focus of the mirror. |
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