If ‘u’ is the object-distance, ‘v’ is the image-distance and ‘f’ is the focal length of a spherical mirror then which of the following is a correct expression for the mirror formula?
SSC MTS 2022-07.07.2022-1
\(\frac{1}{v} + \frac{1}{u} = -\frac{1}{f}\)
\(\frac{1}{v} - \frac{1}{u} = \frac{1}{f}\)
\(\frac{1}{v} + \frac{1}{u} = \frac{1}{f}\)
\(\frac{1}{v} - \frac{1}{u} = -\frac{1}{f}\)