(a) (i) State one application of each of the following(I) Convex mirror(II) Parabolic mirror(ii) Fig 1 which is drawn to a scale of 1:5 represents an object O and its image I formed by a concave mirror.By drawing suitable rays, locate and mark on the figure the position of the principal focus, F of the mirror. Determine the focal length f(b) The graph in figure 2 shows the variation of magnification, M with image distance v for a concave mirror.Determine:(i) The object position when the image position is 45cm(ii) The focal length of the mirror.