Power of a convex lens is \( +5 D\left(\mu_{\mathrm{g}}=1.5\right) ...

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Power of a convex lens is \( +5 D\left(\mu_{\mathrm{g}}=1.5\right) \). When this lens is immersed in a liquid of refractive index \( \mu \), it acts like a divergent lens of focal length \( 100 \mathrm{~cm} \). Then refractive
P index of the liquid will be

W
(A) \( \frac{5}{3} \)
(B) \( \frac{5}{4} \)
(C) \( \frac{6}{5} \)
(D) none of these
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