Two lenses of power +10 D and –5 D are placed in contact. Where should an object be held…
Physics · Class 12 · CBSE — Ray Optics & Optical Instruments
Two lenses of power +10 D and –5 D are placed in contact. Where should an object be held from the lens, so as to obtain a virtual image of magnification 2?
- 5 cm
- –5 m
- 10 cm
- –10 cm
Answer
(D) –10 cm
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