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A metallic rod breaks when the strain produced in the rod is 0.2%. What should be the are of cross section to support a load of 104N, if the Young’s modulus of the material of the rod is 7 × 10^9 N/m^2? (a) 7.15 × 10^-4 m^2 (b) 3.15 × 10^-5 m^2 (c) 2 × 10^3 m^2 (d) 12 × 10^-4 m^2

A metallic rod breaks when the strain produced in the rod is 0.2%. What should be the are of cross section to support a load of 104N, if the Young’s modulus of the material of the rod is 7 × 10^9 N/m^2?

(a) 7.15 × 10^-4 m^2 (b) 3.15 × 10^-5 m^2

(c) 2 × 10^3 m^2 (d) 12 × 10^-4 m^2

Grade:11

2 Answers

Saurabh Koranglekar
askIITians Faculty 10341 Points
one year ago
576-1478_1.PNG
Vikas TU
14149 Points
one year ago
576-1478_1.PNG
Dear student 
Please refer the clear image , 
The image above does not looks good , it is blurr.
Hope for the best 
Good Luck 
Cheers 

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