A convex and concave lens are placed flat on the newspaper.How will you distinguish between them

Sure, here are the steps to distinguish between a convex and a concave lens:

1. Look at the Lens Shape: A convex lens is thicker in the middle than at the edges. On the other hand, a concave lens is thinner in the middle than at the edges.

2. Light Bending: Hold each lens up and look at a distant object through it. A convex lens will bend light rays towards the center, making the object look bigger (magnifying effect). A concave lens will bend light rays away from the center, making the object look smaller.

3. Newspaper Test: Place each lens flat on the newspaper. Look at the text through the lens. A convex lens will magnify the text, making it appear larger. A concave lens will not magnify the text, and it may even make it look smaller or distorted.

By following these steps, you should be able to distinguish between a convex and a concave lens.