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Law of reflection
Angle of incidence = angle of reflection.
An image is seen in a mirror due to a
reflection of light. There are two rays
of light: incident ray and reflected ray.
The normal is perpendicular to the
mirror…read more

Slide 3

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Plane mirror
The image formed in the mirror is a virtual
image as the light rays that reflect off the
mirror appear to be coming from the
image. The image cannot be projected on
to a screen as the light rays aren't real ­
they can't be focused on to a screen.
An image in a plane mirror is the same distance away from the mirror as the
The image is always: virtual, upright and the same size.…read more

Slide 4

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Convex mirror
A convex mirror bends
outwards and it reflects light
outwards, so you can see
more than a 180° plane
The image is virtual, smaller
and upright.
They can be used for rear-
view mirrors in cars or in
shops to catch shoplifters.…read more

Slide 5

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Concave mirror
A concave mirror bends inwards and light is reflected inwards. The position
of the image formed depends on the distance between the object and the
mirror.…read more

Slide 6

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If the object is beyond the focal point, a real, inverted and smaller than the
If the object is on the focal point, the image is real, inverted and the same
size as the object.
If the object is in front of the focal point, then a virtual, larger and upright
image is produced behind the mirror.…read more

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