Question

A student obtained the value of
Young's modulus of steel as 1.9 x 1011
N/m2 while the standard value of Y is
2.1 1011 N/m2. What is the
percentage error in his measurement ?
1) 8.5 %
2) 9.5 %
3) 9 %
4) 10 %
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Answer 1

Answer:

the answer of this question is

Answer. 10%