of focal length f
A short linear object of length l. lies along the axis of a concave mirror, of focal length f, at a distance d from the pole of the mirror. The size of the image is then (nearly)
27
Oct
A short linear object of length l. lies along the axis of a concave mirror, of focal length f, at a distance d from the pole of the mirror. The size of the image is then (nearly) A short linear object of length l. lies along the axis of a concave mirror at a distance [...]