Two thin lenses of power +4 D and -2 D are in contact. What is

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 = +4Download the Monsters presentation for PowerPoint or Google Slides and start impressing your audience with a creative and orinal desn. templates like this one here offer