JEE Advanced 2013 Physics question
A solid sphere of radius R and density ρ is attached to one end of a mass-less spring of force constant k. The other end of the spring is connected to another solid sphere of radius R and density 3ρ. The complete arrangement is placed in a liquid of density 2ρ and is allowed to reach equilibrium. The correct statement(s) is (are)
Answer: (A),(D)
Solution
Let . Total weight . If both spheres are fully submerged, total buoyancy , exactly equal to the weight; so the system is in equilibrium fully submerged, with the light sphere above and the heavy
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