Out of convex mirror and concave mirror, whose focusl is situated behind the mirror ?
What is the advantage of using a parabolic concave mirror over ordinary spherical concave mirror ?
A short linear object of length b lies along the axis of a concave mirror or focal length f at a distance u from the pole of the mirror. The size of the image is approximately equal to
Which property of concave mirror is utilized for using them as shaving mirrors ?
