Question

24.A student uses a lens of focal length +50cm and another student uses a lens of -50cm. Discuss the nature and find power of lens. ll​

Answer 1

Answer:

1. + 50 means convex lens
2. and power = 100/50
3. + 2D
4. -50 means concave lens
5. power = 100/-50
6. -2D

Explanation:

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