Reflection of light occurs when the waves encounter a surface or other boundary that does not absorb the energy of the radiation and bounces the waves away from the surface. The simplest example of visible light reflection is the surface of a smooth pool of water, where the light is reflected in an orderly manner to produce a clear image of the scenery surrounding the pool.
When does it happen
Reflection of light occurs when the waves encounter a surface or other boundary that does not absorb the energy of the radiation and bounces the waves away from the surface. This tutorial explores the incident and reflected angles of a single light wave impacting on a smooth surface.
Types of reflection
Regular reflection occurs when incident parallel rays are also reflected parallel from a smooth surface. If the surface is smooth, parallel incident rays are no longer parallel when reflected. This results in diffuse.
The laws of reflection apply to diffuse reflection. The irregular surface can be considered to be made up of a large number of small planar reflecting surfaces positioned at slightly different angles. Indirect (or diffuse) lighting produces soft shadows. It produces less eye strain than harsher, direct lighting.
Uses of reflection
A refracting telescope uses convex lenses to gather a large amount of light and focus it onto a smaller area. Refracting telescopes use two lenses—an eyepiece lens and an objective lens. When light passes through the objective lens, the lens focuses the light at a certain distance away from the lens. This distance is called the focal length of the lens.
Plane mirror
The rear view mirror of a car helps the drivers to see traffic behind the car.
Plane mirrors on walls make a room look bigger.
Convex mirror
Security mirrors are used in shops.
Concave mirror
A concave mirror is used to reflect light into the microscope.
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