In the case of a spherical mirror,if the object distance $(u)$ and image distance $(v)$ are measured from the pole,then the graph plotted between $(1/u)$ and $(1/v)$ will be:

Obtain the mirror equation for the real image formed by a concave mirror.

Write the mirror equation for a spherical mirror.

$A$ thin rod of $5 \, cm$ length is kept along the axis of a concave mirror of $10 \, cm$ focal length such that its image is real and magnified. If one end of the rod is at a distance of $2f$ from the mirror,what will be its magnification?

The image of an extended object, placed perpendicular to the principal axis of a mirror, will be erect if:
$(a)$ The object is real and the image is real.
$(b)$ The object is virtual and the image is virtual.
$(c)$ The object is real and the image is virtual.
$(d)$ The object is virtual and the image is real.

$A$ point source is situated at a distance $x < f$ from the pole of a concave mirror of focal length $f$. At time $t = 0$,the point source starts moving away from the mirror with constant velocity. Which of the graphs below represents best the variation of image distance $|v|$ with the distance $x$ between the pole of the mirror and the source?