Two lenses of power + 12 and ? 2 diopters are placed in contact. The c – McqOptions

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1.	Two lenses of power + 12 and ? 2 diopters are placed in contact. The combined focal length of the combination will be [Pb. PET 2004]
A.	8.33 cm
B.	1.66 cm
C.	12.5 cm
D.	10 cm
Answer» E.

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