Two different type of lenses are placed on a sheet of newspaper. How will you identify them without touching?

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asked Jan 24, 2018 in Science by Rohit Singh (61,782 points) 35 133 357
Two different type of lenses are placed on a sheet of newspaper. How will you identify them without touching?

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answered Jan 24, 2018 by sameer (82,980 points) 5 11 37
selected Jan 28, 2018 by sarthaks
 
Best answer

If the letters appear bigger/magnified, then the lens is a convex lens. If the letters appear smaller, then the lens will be concave lens.

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