Question

a metallic sphere of radius 8cm is malted and recast into the sphere of cylinder wire of length 12cm find the thickness of the wire​

Answer 1

Given, Diameter of metallic sphere = 8 cm ∴ Radius (R) = 8282 = 4 cm

The length of wire recasted (h) = 12 m = 1200 cm

Let the radius of wire recasted be r since, by melting the metallic sphere, the wire is recasted.

∴ Volume of cylindrical wire = Volume of sphere

Hence the thickness of the wire = 815815 cm