Two stress-strain graphs A and B are drawn by a student (as shown below) but he forgets to specify what are the conditions for A and B. Which of the following options shows the incorrect conditions for A and B ?
A
If A and B are made for two different wires of identical dimensions, then 
.
. B
If A and B are made of two different wires of equal length and of same material, then wire A is more thicker than B.
C
Extension of A is less than that of B.
D
None of the above
Text Solution
Verified by ExpertsThe correct answer is:
A
If A and B are prepared for identical wires of two different materials, then Young's modulus,
So, slope of load-extension graph 
As, wires are identical.
As, extension, 
Then, for wires A and B
As extension for wire A is less than that of B, so A is more thicker than B.
Thus, the option is incorrect, and rest are correct.
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