An equiconvex lens of glass of focal length `0.1 ` metre is cut along a plane perpendicular to principle axis into two equal par

An equiconvex lens of glass of focal length `0.1 ` metre is cut along a plane perpendicular to principle axis into two equal parts. The ratio of focal length of new lenses formes is
A. `1 : 1`
B. `1 : 2`
C. `2 : 1`
D. `2 : 1/2`

An equiconvex lens of glass of focal length `0.1 ` metre is cut along a plane perpendicular to principle axis into two equal parts. The ratio of focal

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