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In determination of young modulus of elasticity of wire, a force is applied and extension is recorded. Initial length of wire is ‘ 1 m’. The curve between extension and stress is depicted then young modulus of wire will be:

  1. 2 cross times 10 to the power of 9 end exponent text end text N divided by m to the power of 2 end exponent    
  2. 1 cross times 10 to the power of 9 end exponent text end text N divided by m to the power of 2 end exponent    
  3. 2 cross times 10 to the power of 10 end exponent text end text N divided by m to the power of 2 end exponent    
  4. 1 cross times 10 to the power of 10 end exponent text end text N divided by m to the power of 2 end exponent    

The correct answer is: 2 cross times 10 to the power of 9 end exponent text end text N divided by m to the power of 2 end exponent



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