Page 158 - Science Class 06

REFLECTION OF LIGHT Reflected Objects : The objects which cause

When a ray of light falls on any object reflec on of light are called reflected
(polished, smooth, shiny object), light from objects. For example, mirror, polished metal
that object bounces back those rays of light sheets, etc. Some mes, even highly
to our eyes and this is known as reflec on polished furniture also acts like a reflected

or reflec on of light. object.
IMAGE
This phenomenon is what enables us to
look at the world around us based. Before, Image is the illusion of an object behind the

a er and during reflec on, light travels in a mirror or any other polished surface. The
straight line. For example, twinkling of stars image formed in a mirror is exactly similar
or light reflected by a mirror. to the object placed before the mirror. It will

Look at the picture that shows how light is be similar in colour, shape and size.
reflected.

A
B

O

Refec on of Light Image of the boy in the mirror.

Now, learn these terms associated with the Forma on of Image
reflec on of light. Image is formed in a mirror or any polished

Incident Ray : A ray of light which strikes surface when light coming from a source
the surface is called incident ray. Here, AO falls on the objects placed infront of a
is an incident ray. mirror is reflected by the mirror to the eyes,

Reflected Ray : A ray of light which crea ng the illusion of coun ng from a
bounces off the surface is called reflected corresponding series points behind the
ray. Here, OB is reflected ray. mirror.

A
B A plane miror forms an image exactly equal
Angle of Angle of
Incidence Normal Reflec on to the size of the object, but laterally
reversed. Laterally reversed means, if you

are holding an object in right hand, you will
Incident Ray Reflected Ray see your image in the mirror holding the
object in le hand.
O
Mirror
158 Science-6