If the power of a lens is - 4.0 D, then it means that the lens is a

power 4dCinema 4DC4D RealTraffic Barbarossaplatz, Cologne - Traffic Simulation C4D C4D2025To find the effective power of a combination of a convex lens and a concave lens, we can follow these steps: 1. Identify the Powers of the Lenses : - The power of the convex lens (P1) is given