Question

If two different types of lenses are placed on a sheet of newspaper, then how will you identify them without touching?

Answer 1

Answer:

Without touch we can identify two different lenses by looking at the size of the newspaper letters under the lens. If the image of the letters is large then it is a convex lens because the convex lens produces a larger image.

Answer 2

Explanation:

Without touch we can identify two different lenses by looking at the size of the newspaper letters under the lens. If the image of the letters is large then it is a convex lens because the convex lens produces a larger image