The focal length of a convex lens of refractive index 1.5 is f. If it is cut into four equal parts as shown in the figure. The focal length of the one of the parts (Shaded) will be
Text Solution
Verified by ExpertsThe correct answer is:
B
……… (i)
and, 
………… (ii)
Dividing (ii) by (i), we get 
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