refraction

seeing the different reflections

DESCRIPTION ABOUT REFRACTION

LIGHT CHANGES DIRECTION WHEN IT CHANGES MEDIUMS,THE SPEED OF LIGHT MOVES AT A CONSTANT AT 300,000,000 M/S,

THE SPEED OF LIGHT SLOWS DOWN,THROUGH A MEDIUM

BIGGER WAVELENGTH FASTER THE LIGHT,ALSO CHANGE IN DIRECTION OR CHANGE IN ANGLE IS KNOWN AS REFRACTION
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MORE ABOUT REFRACTION

Refraction is the bending of a wave when it enters a medium where its speed is different. The refraction of light when it passes from a fast medium to a slow medium bends the light ray toward the normal to the boundary between the two media.Also The phenomenon is explained by the conservation of energy and conservation of momentum. Due to change of medium, the phase velocity of the wave is changed but its frequency remains constant. This is most commonly observed when a wave passes from onemedium to another at any angle other than 0° from the normal. Refraction of light is the most commonly observed phenomenon, but any type of wave can refract when it interacts with a medium, for example when sound waves pass from one medium into another or when water waves move into water of a different depth. Refraction is described by Snell's law, which states that for a given pair of media and a wave with a single frequency, the ratio of the sines of the angle of incidence θ1 and angle of refraction θ2 is equivalent to the ratio of phase velocities (v1 / v2) in the two media, or equivalently, to the opposite ratio of the indices of refraction (n2
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