Q:
      
      
         
            
The Hooke's law is valid for
         
       
      
      
      
          
      
      
          Answer & Explanation
         Answer: A) only proportional region of the stress strain curve         
         
Explanation: Hooke's law states that within the elastic limit, stress developed is directly proportional to the strain produced in a body.Hooke’s law is valid only in the linear part of stress-strain curve. Hence, statement 1 is correct.
       
      
      
      
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