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Light
Reflection

The image we see in a mirror is due to the reflection of light




The diagram above shows us that the ray going towards the mirror is
the incident ray and the ray that is reflected by the mirror is the
reflected ray... basic stuff

The image produced…

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Curved Mirrors: Concave mirrors

Light rays from the same point on a very distant object and effectively
parallel when they reach a mirror. They are all brought to a focus at a
point called the focus. A real image of the object is formed here




The diagram shows that for…

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plane, which is very useful. They always form smaller, upright, virtual
images.

Refraction: The change of direction in light rays is called light refraction.



The diagram shows a simple
experiment in which light
changes direction when it
enters and exits the glass.

As the light ray travels from air
to…

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· A converging lens makes parallel rays converge to a focus,
where the point the parallel rays are focused is the principal
focus of the lens
o If the object is further away from the lens than the focus, a
real, inverted image is formed.
o If the object is…

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