Explain about lens formula...
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The lens equation allows us to understand geometric optic in a quantitative way where 1/d0 + 1/di = 1/f. The lens equation essentially states that the magnification of the object = - distance of the image over distance of the object. ... Remember that the focus is on the proper side of a lens when it's converging.
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A lens formula may be defined as the formulawhich gives the relationship between the distance of image (v), distance of object (u),and the focal length (f) of the lens. It may be written as: Principal Axis Concave Lens. Where, v = Distance of image from optical centre of lens
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