Ray Optics and Optical Instruments

Question: 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 formed is

1) $1 : 1$

2) $1 : 2$

3) $2 : 1$

4) $2 : \frac{1}{2}$

Solution:

Explanation: No Explanation

Refraction at Curved Surface

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