Question

Which of the following indicates lens formula?

• A. $f = \frac{1}{v} - \frac{1}{u}$
• B. $\frac{1}{f} = \frac{1}{v} - \frac{1}{u}$
• C. $\frac{1}{f} = v - u$
• D. $f = \frac{1}{v - u}$

Hint:

Always remember the lens formula in the form: \[ \frac{1}{f} = \frac{1}{v} - \frac{1}{u} \] It is one of the most frequently used formulas in ray optics.

Answer 1

The Correct Option is B