Question

What type of lens from the following would you have in your magnifying lens to read a page in small print ?

A
A convex lens of focal length 80 cm
B
A concave lens of focal length 80 cm
C
A concave lens of focal length 4 cm
D
A convex lens of focal length of 4 cm
Solution
Verified by Toppr

A concave lens always produces virtual, erect and diminished images and the decrease in the size of the image depends on the position of the object.
Concave lens will shrink the size of the already small letters. Hence, it is undesirable.

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