a convex lens of power 4d is placed at a distance of 40cm

power 4dTo find the focal length of the combination of two thin lenses in contact, we can follow these steps: Step 1: Identify the Powers of the Lenses We have two lenses: - Lens 1 has a power ( P1 = +4With our 4DX PowerPoint template, you'll receive all the integral information about the four discips and a wide selection of templates to introduce the 4DX in your company. Present