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The equiconvex lens has focal length f. If is cut perpendicular to the principal axis passin through optical centre, then focal length of each half is

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The equiconvex lens has focal length f. If is cut perpendicular to the principal axis passin through optical centre, then focal length of each half is
A. `(f)/(2)`
B. f
C. `(3f)/(2)`
D. 2f
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Correct Answer - D
If the equicenvex lens is cut along optical axis i.e., perpendicular to principle axis then focal length of each piece is double the focal length of original lens.
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