The distance between the potical centre
and point of convergence is called focal
length in which of the following cases?
answer with explanation
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The distance between the potical centre
and point of convergence is called focal
length in which of the following cases?
answer with explanation
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Answer:
That is why, a lens has two foci. They are at equal distance from the optical centre. Focal length of a convex lens: The distance between the optical centre and principal focus of a lens is called focal length. Focal length of a lens depends on the refractive index of the glass and its curvature.
Explanation:
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