Physics Definitions


Laws of reflection of light

(i) The incident ray, the normal at the point of incidence and the reflected ray all lie on the same plane.

(ii)The angle of incidence is equal to the angle of reflection (i = r).


A Real Image is an image formed by the actual intersection of light rays.


A Virtual Image is formed by the apparent intersection of light rays.


Refraction is the bending of light as it goes from one medium to another.


Snell’s law of refraction

The ratio of the sine of the angle of inciden...

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