Question

A copper sphere of radius 3 cm is beaten and drawn
into a wire of diameter 0.2 cm. The length of the wire is
(a) 24 m (b) 27 m (c) 30 m (d) 36 m​

Answer 1

Answer:

d-36 m

Step-by-step explanation:

Volume of sphere = Volume of wire

`:. 4/3 π xx (3)^3`

`= π xx (0.1)^2 xx h`

`= 36/.01 cm`

`= 3600 cm`

`= 36 m.`

Answer 2

Step-by-step explanation:

volume of copper sphere = volume of wire ( cylindrical wire )

4/3*22/7*3*3*3= 22/7 *0.1*0.1*L

113.14 ( 113 aprox)

113*7/22*0.1*0.1 = L