Which of the following lenses would you prefer to use while reading small letters found in dictionar...........

Physics Chapter - 10

Which of the following lenses would you prefer to use while reading small letters found in dictionary?

A convex lens of focal length 50 cm

A concave lens of focal length 50 cm

A convex lens of focal length 5 cm

A concave lens of focal length 5 cm

Convex lens is used as magnifying glass. For better performance its focal length should be small.

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