A piece of ductile metal is in the form of cylinder of radius 0.5 cm and length 5 cm . It is drawn out of the wire of diameter 1 mm. What will be the length of the wire so obtained??
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diameter of wire = 1 cm
radius = 0.5
length = 11 cm
now, volume = 8.653 cm
the volume of both will be the same.
now, the diameter of new wire = 1mm = 0.1 cm
radius = 0.05
; new length = volume/Лr² = 1100.02 cm = 11m
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Answer:
11m
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