There is only one point on a concave or convex lens , a ray passing through which is not deviated at all . Where does this point lie and what is it called?
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the point in the centre of the lens is the point from where no ray is deviated. it is called the origin
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Answer:
The point is known as the 'Pole' of the lens. It lies at the center of the lens. Rays do not deviate from their path if they pass through the pole.
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