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| 1. |
If the convex lens of focal length 10 cm and a concave lens of focal length 50 cm are kept in contact with each other. What will be the behaviour of the combination (behaviour as a convex lens/concave lens) ? |
| Answer» SOLUTION :The focal length of the COMBINATION of the lenses is POSITIVE. This shows that the combination will BEHAVE as a convex lens. | |