Question

Explain the experiment to find out the focal length of convex lens.The focal length of convex lens is 100cm find its power
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Answer 1

Answer:

Lodestone (also called Magnetite) is a naturally-occurring “permanent” magnet mineral. By “permanent,” it is meant that the material maintains a magnetic field with no external help. The characteristic of any magnetic material to do so is called retentivity. Ferromagnetic materials are easily magnetized.

Explanation:

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Answer 2

Answer:f=100cm p=1/f( f in metres) p=1/1(100cm=1m) p=1Dioptre Mark me Brainliest!!: )