What is the ratio of the image height when the object distance is 3.0 cm to that when the object distance is 23 cm

You have a concave spherical mirror (the same holds if you had a convex mirror) If the value of q(the distance from the image to the mirror along the principal axis of the mirror) is 1.45m and the distance of p (the distance from the object to the mirror along the principal axis of the mirror) is 4.11m, what is the focal length of the mirror? The magnification equation and the sign convention for q imply that real images of real objects are always inverted (if both p and q are positive, m is negative); virtual images of real objects are always upright (if p is positive and q is negative, m is positive).  Keeping the signs of p and q straight in your mind is the most challenging aspect of mirrors (and lenses).  Fortunately, table 23.2 summarizes when p and q are positive and when they are negative.

An object is located 13.9 cm in front of a convex mirror, the image being 5.94 cm behind the mirror. A second object, twice as tall as the first one, is placed in front of the mirror, but at a different location. The image of this second object has the same height as the other image. How far in front of the mirror is the second object located?

In front of a spherical convex mirror of radius 21.2 cm, you position an object of height 4.68 cm somewhere along the principal axis. The resultant image has a height of 2.81 cm. How far from the mirror is the object located? 12.1 cm 8.5 cm 5.7 cm 7.1 cm

An object is placed 47.5 cm from a concave spherical mirror with focal length of magnitude 22.0 cm. (a) Find the location of the image. cm in front of the mirror (b) What is the magnification of the image? (c) Is the image real or virtual?

An object is placed in front of a convex mirror with radius of curvature = 18 cm. The object's height is 4.1 cm and it is initially 26 cm in front of the mirror. Find the (a) location and (b) height of the image. Next the object moves closer to the mirror, so the object distance is 3.4 cm. Again, find the (c) location and (d) height of the image. (e) What is the ratio of the image height when the object distance is 3.4 cm to that when the object distance is 26 cm?