what is the power of convex lens havig focal length 0.2m?
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Answered by
7
Answer:
power = 1 / f
P = 1 / 0.2
power = 5D
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Answered by
1
Answer:
The power of a lens, in dioptre, is the reciprocal of the focal length, when the focal length is expressed in metres. It is given that the focal length is 0.2 m. Therefore, the power is 1/0.2=5 dioptre.
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