Q4 of 27 Page 77

An aluminium sphere is dipped into water. Which of the following is true?

As we know that buoyant force on a body of volume V and density of ρ, when immersed in liquid is FB.

So at 0℃ assume the volume be V and density be ρ0 then buoyant force F0℃and at 4℃ F4℃ also density i.e. ρ4 will be maximum all over the range of temperature so


Now ratio of buoyant force


So


Therefore option (a) is correct.

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