Reflection on a mirror surface.
I have learnt that reflection is the bouncing off light after hitting a mirror surfaces.
There are two type of reflection the 1st one is regular reflection and 2nd is the diffused reflection. Regular reflection is made out of a parallel beam of light which bounce off a smooth surface and an image is form while the diffuse reflection reflects on a rough surface the ray is reflected in different direction and no image is form.
The angle of incidence is equal to the angles of reflection in the plane mirror
Properties of plane mirror:
Virtual
Upright
Same size as the object
Laterally inverted
Uses of plane mirror :
helps a driver see the traffic behind ,
help a person check appearance
make a room bigger
periscope are made of two plane mirrors to see over obstacles
Convex mirrors from upright image that is always smaller than the object. They allow many things to be seen
Concave mirrors formed upright magnified images if the object is close to the mirror. If the image is further away, the image is inverted
Friday, June 20, 2008
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