Question

The maximum magnification that can be obtained with a convex lens of focal length 2.5 cm is (the least distance of distinct vision is 25 cm)

• A. 10
• B. 0.1
• C. 62.5
• D. 11

Answer 1

Answer: (D)

11

Answer 2

$m _ { \max } = 1 + \frac { D } { f } = 1 + \frac { 25 } { 2.5 } = 11$.