Question

which of the following lense is perfect for. while reading small letter a) 50cm comvex lense b)50cm concave lense c) 5cm convex lense d)5cm concave lense​

Answer 1

Answer:

(c)

Explanation:

Answer is (c) A convex lens of focal length 5 cm. A concave lens will always give a diminished image. Now, the smaller the focal length, the greater will be the power of the lens. Hence, a convex lens of focal length 5cm will be preferable.

thank you