Question

From a spherical mirror, the graph of $1/v$ versus $1/u$ is given by

• A.
• B.
• C.
• D.

Answer 1

Answer: (B)

We have, $\frac{1}{u}+\frac{1}{v}=\frac{1}{f}$
or $\frac{1}{v}=-\frac{1}{u}+\frac{1}{f}$
Now, compare it with equation, $y=mx+c$.
Therefore, graph is a straight line having negative slope.