Explain refraction? Give sign conventions of lens?
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The sign conventions that are followed in case of refraction of light through spherical lenses are as follows: ... All the distances are measured from the optical centre of the lens. 2. All the distances which are measured in the same direction of the incident light ray will be taken as positive. 3.
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In physics, refraction is the change in direction of a wave passing from one medium to another or from a gradual change in the medium. Refraction of light is the most commonly observed phenomenon, but other waves such as sound waves and water waves also experience refraction.
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