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6.5 MIRRORS

When you look in a mirror is a virtual image. It is located behind the mirror. Some of the rays from the object are reflected by the mirror and enter your eye.

Spherical mirrors are mirrors whose surfaces form a part of a hollow sphere, The spheres can be made of glass or any polished metal surfacesThe types areconcaveconvex

2Some definitions of convex and concave mirrorscenter of curvature CFocal point F P could be (+)real objects(-)virtual objectAnd also for q(objects)With the rule is are determined As real or virtual(are distances)f focal distance(+)concaves(-)convex

Radius of curvature is the radius of the sphere from which the mirrors (either convex or concave) is made.It is represented by the letter R in convex mirrors, the parallel rays, on reflection, appear to diverge from a point F. This point again is called the focal point of the convex mirrors and the distance PF is called the focal length. The focus, in this case is behind the mirrorIn concave mirror, the rays appear to converge at a point F. AlsoThe focus is in front of the mirror.

The focus is where the image is formed of an object placed at a far distance.4

Problem

We have a light pole that is in front of a spoon and theshine of the bulb is reflected by the concave side of spoon.It can reflect an image on a wall that is near.Find the distance to the image that appear in the wall?