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Reflection

Light travels in straight lines and is reflected by mirrors, which can be flat or distorted. A ray diagram illustrates the behavior of light rays during reflection, with key concepts including incident rays, angles of incidence and reflection, and the law of reflection. The document explains how light from a source, like the Sun, interacts with objects and reflects towards an observer's eyes.

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lama agsam
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10 views2 pages

Reflection

Light travels in straight lines and is reflected by mirrors, which can be flat or distorted. A ray diagram illustrates the behavior of light rays during reflection, with key concepts including incident rays, angles of incidence and reflection, and the law of reflection. The document explains how light from a source, like the Sun, interacts with objects and reflects towards an observer's eyes.

Uploaded by

lama agsam
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as PDF, TXT or read online on Scribd
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28/12/24 Reflection

• Light travels in straight lines called rays.


• Plane mirrors are flat mirrors. They preserve the shape of
light rays when they're reflected. When you look at your
reflection from a spoon though, you can see that it is distorted.
• A ray diagram is a diagram that shows what happens to the
light rays during reflections.
• A light ray arriving at a mirror is called an incident ray. It is
the ray coming onto a surface.
• The incident ray makes an angle with the surface of the
mirror. This is measured from an angle from a line
perpendicular to the mirror (not from the mirror). This
perpendicular line is called the normal. It drawn from where
the incident ray meets the mirror.
• A reflected ray is the incident ray, reflected in the opposite
direction.
• The angle of incidence is the angle between the normal and
the incident ray.
• The angle of reflection is the angle between the normal and
the reflected ray.
• The law of reflection = the angle of reflection is always
equal to the angle of incidence.
• Here, the light from the Sun is
reflected from the cyclist. This is the
incident ray on the mirror. The
reflected ray goes from the mirror to
the driver's eyes.

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