A convex lens of power + 6D is placed in contact with a concave

power 4dMalaysia Live 4D Results for Sports ToTo, Magnum 4D, Pan Malaysia 1+3D, 6D (Da Ma Cai), Sabah Lotto 4D88, Sarawak Cash Sweep & Sandakan 4D. Toggle navationTwo lenses have power of (i) + 2 d (ii) -4D. What is the nature and focal length of each lens? b. An object is kept at a distance of 100 cm from lens of power -4D. Calculate the image distance.