A solid iron sphere of diameter 6 cm is melted and made to a hallow cy – McqOptions

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1.	A solid iron sphere of diameter 6 cm is melted and made to a hallow cylindrical pipe of external diameter 10 cm and of length 4 cm. The width of the sheet of pipe is :
A.	1 cm
B.	2 cm
C.	3 cm
D.	4 cm
Answer» B. 2 cm

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