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an equi-convex len has power P. it is cut into two symmitrical parts by a plane containing the principal axis and then two pieces are joined. the power of combination will be ?

an equi-convex len has power P. it is cut into two symmitrical parts by a plane containing the principal axis and then two pieces are joined. the power of combination will be ?

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1 Answers

Aarti Gupta
askIITians Faculty 300 Points
6 years ago
Equi-convex lens is a convex lens whose surfaces are of the same radii of curvature.Now when such lens is cut into two symmetrical parts by a plane containing the principal axis and then joined,the focal length of the combination will be infinity,and thus the power of combination becomes zero.



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