Geometrical Optics Reflection Mirror Refraction Lens
Geometrical Optics Reflection
Mirror Refraction Lens
 REFLECTION
Whenever light strikes the surface of any material substance, part of the light is turned back from the surface. We call this reflection. If the surface is rough, the reflected light goes off in all different directions. This is called diffuse reflection. If the surface is very smooth, however, the reflected light goes in a definite direction determined by the direction of the incident light. |
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| Light is reflected from a plane surface at an angle equal to the angle made by the incoming light. If the surface is not plane but curved, it may still be considered to be made up of many small, elementary plane surfaces. The path of any light ray striking a curved surface can still be determined from the law of reflection. This law is the basis for computing the image-forming characteristics of curved mirrors. |
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Geometrical
Optics Reflection Mirror
Refraction Lens
