Question

The maximum magnifying power of a convex lens of focal length $5cm$ can be :

• A. 6
• B. 10
• C. 25
• D. 1

Answer 1

The correct option is A 6

Option (d) is correct

For a convex lens maximum magnification

$$\begin{array}{cc}& m_{max}=1+\frac{d}{f}\\ & =1+25/5=6\end{array}$$

the least distance vision is $25cm=d$