Question
Concave lens and Convex lens.
| Concave lens | Convex lens | ||
| (i) | It is called diverging lens. | (i) | It is called converging lens. |
| (ii) | This lens is thinner in the centre than at its edges. | (ii) | This lens is thicker at the centre than at its edges. |
| (iii) | The principal focus is virtual. | (iii) | The principal focus is real. |
| (iv) | The focal length is negative. | (iv) | The focal length is positive |
| (v) | This lens is used to correct myopia | (v) | This lens can be used to correct hypermetropia. |
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