. Assertion: A biconvex lens of focal length 10 cm is split into two equal parts by a plane parallel to its principal axis
The focal length of the each part will be 20 cm.
Reason: Focal length does not depend on the radii of curvature of two surfaces.
Best Answer
Solution : Since, lens is cut into two ewual parts by a plane parallel to its principal axis, so both the part still to be biconvex.
Where R1 and R2 be the radii of curvature of two surfaces.
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