An object is placed at a distance of 10cm from a lens of power 4D…

power 4dThe 4DX PowerPoint Template consists of three slides with creative layouts for depicting the attributes of this execution methodology. The first slide shows a speedometer diagram withA convex lens of power 4D is kept in contact with a concave lens of power 3D, the effective power of combination will be . View Solution; Knowledge Check. A convex lens of focal length 40 cm