Planar ones always produce virtual images of the same size.
One of these devices was oriented at 7 degrees relative to the canal ray tube in an experiment that proved time dilation. These devices surround the gain medium in lasers. They were placed at the center and at the ends of the arms of the Michelson interferometer. Two divided by the radius of (*) curvature of these devices equals one over the distance to the object, plus one over the distance to the image. Planar ones always produce virtual images of the same size. These devices are silvered, and they always invert an object from left to right. For 10 points, name these devices which reflect light.
One of these devices was oriented at 7 degrees relative to the canal ray tube in an experiment that proved time dilation.
mirrors [or specific types of mirrors]