Question

Which of the flowing lens you prefer while reading small laters found in dictionary?

Answer 1

Answer:

convex lens. since it magnifies the object and produces an erect and virtual image for the observer.

position of object: between O and F1

Answer 2

$\mathfrak{\huge{\pink{\underline{\underline{Answer:-}}}}}$

A convex lens gives a magnified image of an object when it is placed between the radius of curvature and focal length. Also, magnification is more for convex lenses having shorter focal length. Therefore, for reading small letters, a convex lens of focal length 5 cm should be used.