Question

In an experiment with a lens, the object distance u versus image distance v data were obtained. Which of the following graphs will be linear?

• A. $\frac{1}{v}$ vs $\frac{1}{u}$
• B. $uv$ vs $(u+v)$
• C. $\frac{1}{u}$ vs $v$
• D. $v$ vs $u$

Answer 1

The correct option is A $\frac{1}{v}$ vs $\frac{1}{u}$

WE know that $\frac{1}{v}-\frac{1}{u}=\frac{1}{f}$.

This equation shows a linear relation between $\frac{1}{v}$ and $\frac{1}{u}$.

Rest other graphs are non linear.