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Entry Test MCQ :: Optical Instruments

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Dioptre power of an concave lens of 10 cm focal length is

[A].	10 dioptre	[B].	10 dioptre
[C].	1 / 10 dioptre	[D].	1 / 10 dioptre

Answer: Option B

azmat said:

p=1/f so ans is c

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