A solid iron rod of length h meters and diameter r meters is melted in – McqOptions

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1.	A solid iron rod of length h meters and diameter r meters is melted into six equal solid iron spheres of diameter r meters. Which one of the following relations is correct?
A.	h = 2r
B.	h = 4r
C.	h = 3r
D.	None of the above
Answer» C. h = 3r

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