Sunday 3 March 2013

3.16 construct ray diagrams to illustrate the formation of a virtual image in a plane mirror

The mirror- a straight line with hatchings to show the side with the reflective coating on it.
Incident ray- line with arrows pointing towards the mirror.
Reflection ray- line with arrows pointing away from the mirror.
The image- (where the reflection appears to be behind the mirror) dashed line.

The angle of incidence should equal the angle of reflection.
A perpendicular line from the object to the mirror, if repeated the other side of the mirror, shows where the image appears to be in the mirror. Draw a line from the image to the eye, where this passes the mirror is where the angle of incidence should also meet the mirror.

resource.rockyveiw

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