Did Aristotle believe that forces are necessary to keepobjects moving, or did he believe that, once moving,theyd move of themselves?
Reflection at a plane surface • Light rays from a point radiate in all directions. • Light rays from an object point reflect from a plane mirror as though they came from the image point. Refraction at a plane surface • Light rays from an object at P refract as though they came from the image point P Image formation by a plane mirror Copyright © 2012 Pearson Education Inc. Characteristics of the image from a plane mirror • The image is just as far behind the mirror as the object is in front of the mirror. • The lateral magnification is m = y/y. • The image is virtual, erect, reversed, and the same size as the object. The image is reversed • The image formed by a plane mirror is reversed
