Mirrors, and a bit on images

Just some fairly concise notes for the AQA P3 section on mirrors.

HideShow resource information
Preview of Mirrors, and a bit on images

First 188 words of the document:

Key points in images, mirrors :
Images:
A real image can be projected.
A virtual image is when the rays are diverging such as a reflection in a mirror. Looking through a
magnifying glass also produces a virtual image, the image appears bigger and further away than it
really is.
Mirrors:
Angle of INCIDENCE = angle of REFLECTION
These two angles are always defined between the ray itself and the NORMAL. The normal is
perpendicular to the mirror.
Plane mirrors:
The image is the same size as the object, the same distance from the mirror, it is formed from
diverging rays this means that it is a virtual image. Below is an example:
Concave mirrors:
Light shining on a concave mirror converges Concave mirrors are like a portion of a sphere, the
centre of the `would have been sphere' is known as the centre of curvature (C) and the centre of
the mirror is the vertex. If you draw a line between the two the middle point is the focal point(F).

Other pages in this set

Page 2

Preview of page 2

Here's a taster:

For a concave mirror the incident ray is parallel to the axis. Upon reflection it will pass through the
focal point (as above).
The distance from the mirror affects the image:
Object at C = real, upside down image, same size, same place.
Object between C and F = real, upside down bigger image, behind it.
Object in front of F = virtual, right way up, behind the mirror.
AN EXAMPLE OF WHEN A CONCAVE MIRROR IS USED IS FOR CAR WING MIRRORS.…read more

Page 3

Preview of page 3

Comments

No comments have yet been made

Similar Physics resources:

See all Physics resources »See all resources »