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`
