A 12-inch object is placed 30 inches in front of a plane mirror. A ray of light from the object strikes the mirror at a 45-degree angle. How tall is the image produced by the mirror?

A plane mirror produces an image that is the same size as the object. The 12-inch object therefore has an image 12 inches tall. Its distance from the mirror and the ray’s 45-degree angle do not change the image’s height, so the correct choice is 12 inches.

AI-written and checked against the verified answer.