Question

I am working on a project where I have to make objective lenses. I was searched on the internet and I found a method. For that method I have to stack a few convex lenses- starting from plano convex lens as base and go on for lenses with increasing curvature. Can someone please tell whether I can use magnifying glass as the plano convex lens, if not, please tell which other things in our daily life have plano convex lenses. Also please tell whether the lenses inside a laser pointer is 1. plano convex 2. slightly curved 3. medium curve 4. buldging curve.
The one who answers all my answers correctly will be followed by me. As also I'll mark his/her answer as brainliest once I try out his/her suggestion and it works.​

Answer 1

Explanation:

first Court the two cardboard in one part it can be a circle circle can make a square .