A solid sphere of gold of diameter 18 cm. is converted into a wire of
diameter 4 mm. Then length of the wire is ?.?
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Answer:
{243} = Ans
Diameter Of Solid Sphere = 18Cm
Radius = 18/2 =9cm
Diameter Of Wire = 4 MM
Radius =2 mm =0.2cm
Volume of Sphere = Volume of Wire (Cylinder)
4/3PieR³ =pieR²H
4/3×9³ = 0.2²H
H = 24300cm = 243m
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