An iron rod of 1 cm diameter and 8 cm length, is drawn into a wire of 18m in length with uniform thickness. The thickness of the wire would be :
A. 1/21
B. 1/18
C. 1/15
D. 1/12
Answer:C
An iron rod of 1 cm diameter and 8 cm length, is drawn into a wire of 18m in length with uniform thickness. The thickness of the wire would be :
A. 1/21 B. 1/18 C. 1/15 D. 1/12