A piece of metal of specific gravity 13.6 is placed in mercury of specific gravity 13.6, what fraction of it volume is under mercury ?
(A) the metal piece will simply float over the mercury
(B) the metal piece will be immersed in mercury by half
(C) whole of the metal piece will be immersed with its top surface just at mercury level
(D) metal piece will sink to the bottom
(E) none of the above
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