A solid iron sphere and a solid lead sphere of the same size are each suspended

Question

A solid iron sphere and a solid lead sphere of the same size are each suspended by strings and are submerged in a tank of water. (Note that the density of lead is greater than that of iron.) Which of the following statements are valid? (Choose all correct statements.) The buoyant force on each is the same. The buoyant force on the lead sphere is greater than the buoyant force on the iron sphere because lead has the greater density. The tension in the string supporting the lead sphere is greater than the tension in the string supporting the iron sphere. The buoyant force on the iron sphere is greater than the buoyant force on the lead sphere because lead displaces more water. None of those statements is true.

Explanation / Answer

Buoyant force on each is same The tension in the string supporting lead sphere is greater than tension in the string supporting the iron sphere

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