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Question
Point out the difference between a convex lens and a concave lens.
Solution
| Convex Lens | Concave Lens | ||
| 1. | It is thicker at the centre and thin at the ends. | 1. | It is thinner at the centre and thick at the ends. |
| 2. | It converges rays of light. | 2. | It diverges rays of light. |
| 3. | It has a real focus. | 3. | It has a virtual focus. |
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