$A$ beam of light incident on a plane mirror forms a real image on reflection. The incident beam is

$A$ plane mirror is placed vertically facing due north. An arrow pointing north-east is kept in front of the mirror. In which direction will the arrow point in this image?

Where is the image formed when an object is placed at a distance of $2f$ in front of a convex mirror?

How can you distinguish between a plane mirror,a convex mirror,and a concave mirror by merely looking at the image formed in each case?

Find the focal length (in $cm$) of a convex mirror whose radius of curvature is $32\, cm$.

Define the following terms in relation to a concave spherical mirror (any five):
$(i)$ Pole
$(ii)$ Centre of curvature
$(iii)$ Radius of curvature
$(iv)$ Principal axis
$(v)$ Principal focus
$(vi)$ Aperture
$(vii)$ Focal length