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Magnification by a lens of an object at distance 10 cm from it is -2. now a seconnd lens is placed exactly at the same positon where first was kept, without changing the distance between object and lens. The magnification by this second lens is -3. Now both the lenses are kept in contact at the same place. what will be the new magnification ?A. `-13/5`B. `-12/7`C. `-6/11`D. `-5/7` |
Answer» Correct Answer - C | |