Reflection is the bouncing of light off an object,when light falls on the object.
The laws of reflection :
The angle of incidence is equal to the angle of reflection.
The incident ray , the reflected ray and the normal at the point of incidence all lie on the same plane.
There are two types of reflection :
Regular reflection ---- a parallel beam of light is reflected as a parallel beam in the same direction to form clear images,occurs on smooth surfaces.
Diffused reflection ----- a parallel beam of light is reflected in different directions without forming any image,occurs on rough surfaces.
Uses of Plane Mirror
Help the driver to see traffic behind
Make a room look bigger
Check their appearance
Uses of Curved Mirrors
Convex --- Security mirrors are used in shops
Blind corner mirrors help drivers to see objects around the corner
Concave ---- Aconcave mirror is used to reflect light into the microscope
A dentist's mirror magnifies the image of your teeth.
From:Git it right
and Text book
Subscribe to:
Post Comments (Atom)
No comments:
Post a Comment