A 20.0 cm tall object produces a 40.0 cm tall real image when placed in front of a curved mirror with a focal length of 50.0 cm. Determine the place that the object must be located to produce this image.

An object is placed 30 cm in front of a converging mirror having a focal length of magnitude 20 cm. What is the image distance, in cm?  Your answer needs to have 2 significant figures, including the negative sign in your answer if needed. Do not include the positive sign if the answer is positive. No unit is needed in your answer, it is already given in the question statement.   An object is placed 30 cm in front of a diverging mirror having a focal length of magnitude 20 cm. What is the image distance, in cm?  Your answer needs to have 2 significant figures, including the negative sign in your answer if needed. Do not include the positive sign if the answer is positive. No unit is needed in your answer, it is already given in the question statement.   When an object is 20 cm in front of a spherical mirror, the image is 12 cm behind the mirror. What is the focal length of the mirror, in cm? Your answer needs to have 2 significant figures, including the negative sign in your answer if…

You have a concave spherical mirror with a 11.9 cm radius of curvature. You place an object on the mirror's axis, 19.5 cm in front of the mirror. How far is the object's image from the mirror?

A tall tree is growing across a river from you. You would like to know the distance between yourself and the tree,as well as its height, but are unable to make the measurements directly. However, by using a mirror to form an image of the tree and then measuring the image distance and the image height, you can calculate the distance to the tree as well as its height. Suppose that this mirror produces an image of the sun, and the image is located 0.8646 m from the mirror. The same mirror is then used to produce an image of the tree. The image of the tree is 0.9468 m from the mirror. (a) How far away is the tree? (b) The image height of the tree has a magnitude of 0.15 m. How tall is the tree?