If to break a wire of 1 m length, minimum 40 kg -wt is required, then to break a wire of same material 6 m in length and double in radius, the breaking weight required will be
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
C
Breaking force 
Breaking stress 
Area of cross-section of wire
Breaking force 
If radius becomes doubled, then breaking force becomes 4 times, i.e. 
.
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