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A thin lens made of glass (refractive index "=1.5" ) of focal length "f=16cm" is immersed in a liquid of refractive index "1.42" .If its focal length in liquid is f_(1) ,then the ratio f_(1) /f is closest to the integer

A convex lens of refractive index 1.5 is immersed in a liquid of refractive index: 1.6 What will happen to the focal length and nature of lens ?

A thin lens made of glass (refractive index = 1.5) of focal length f= 16 cm is immersed in a liquid of refractive index 1.42. If its focal length in liquid is f_1 , then the ratio f_1 lf is closest to the integer

A thin convex lens made of glass of refractive index 3//2 has a power of 5 D. When it is immersed in a liquid of refractive index mu , it behaves like a divergent lens of focal length 1 m. Calculate the refractive index of the liquid.