A thin convex lens made from crown glass (\\mu=\frac{3}{2}) has focal length \f. When it is measured in two different liquids having refractive indices \frac{4}{3} and \frac{5}{3}, it has the focal lengths \f_1 and \f_2, respectively. The correct relation between the focal lengths, is

Correct Answer is : f1>f and f2 become negative

\f_1 and \f_2 both become negative

\f_1>\f and \f_2 become negative

CGPET 2022 Solved Paper

Section: Physics

Question : 33 of 150

Marks: +1, -0

A thin convex lens made from crown glass (µ=‌

) has focal length f. When it is measured in two different liquids having refractive indices ‌

and ‌

, it has the focal lengths f1 and f2, respectively. The correct relation between the focal lengths, is

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