Distance between focus and centre of curvature is equal to ______.
Half of radius of curvature
Radius of curvature
Height of the mirror
Object distance
Focus is the midpoint between the pole and the centre of curvature of a mirror. So, the required distance is half of radius of curvature.
Distance between focus and centre of curvature is equal to ___.
In order to obtain a magnification of −2 (minus 2) with a concave mirror, the object should be placed:(a) between pole and focus(b) between focus and centre of curvature(c) at the centre of curvature(d) beyond the centre of curvature