Question

If the object and image distances due to a convex lens are x each, then its focal length is

• A. 2x
• B. $\frac{x}{2}$
• C. $\frac{2x}{3}$
• D. 4x

Answer 1

Answer: (B)

$\frac{x}{2}$

Answer 2

The correct option is (B): $\frac{x}{2}$