Physics
Complete the following table —
| Type of lens | Position of object | Nature of image | Size of image |
|---|---|---|---|
| Convex | Between the optical centre and focus | ||
| Convex | At focus | ||
| Concave | At infinity | ||
| Concave | At any distance |
Answer
| Type of lens | Position of object | Nature of image | Size of image |
|---|---|---|---|
| Convex | Between the optical centre and focus | Virtual and upright | Magnified |
| Convex | At focus | Real and inverted | Highly magnified |
| Concave | At infinity | Virtual and upright | Highly diminished |
| Concave | At any distance | Virtual and upright | Diminished |
Related Questions
In each of the following cases, where must an object be placed in front of a convex lens so that the image formed is,
(a) at infinity,
(b) of same size as the object,
(c) inverted and enlarged,
(d) upright and enlarged?
In the diagrams below, XX' represents the principal axis, O the optical centre and F the focus of the lens. Complete the path of the rays A and B as they emerge out of the lens.
(a)
(b)
Distinguish between a real and a virtual image.
A lens forms an upright and magnified image of an object.
(a) Name the lens.
(b) Draw a labelled ray diagram to show the image formation.