For a cylinder of density 1.5gcm−3, buoyant force is 4 N inside a liquid of density d. Find the buoyant force on the same cylinder inside a liquid of density 3d.
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Solution
d=1.5gcm−3,FB1=4N dL1=d,FB2=?,dL2=3d We know, FBαd1 ⇒FB1FB2=dL1dL2 ⇒FB2=FB1×dL2dL1=4×3dd=12N