JEE Main & Advanced Sample Paper JEE Main Sample Paper-38

  • question_answer
    Statement-1: If collision occurs between two elastic bodies their kinetic energy decreases during the time of collision.
    Statement-2: During collision intermolecular space decreases and hence elastic potential energy increases.

    A)  Statement-1 is true, Statement-2 is true; Statement-2 is a correct explanation for Statement-1.                    

    B)  Statement-1 is true, Statement-2 is true; Statement-2 is not a correct explanation for Statement-1.            

    C)  Statement-1 is true, Statement-2 is false.                 

    D)  Statement-1 is false, Statement-2 is true.                 

    Correct Answer: A

    Solution :

     During the time of collision between two elastic bodies, elastic potential energy increases as a result of decrease in intermolecular space. Hence, kinetic energy decreases during that time. Note that kinetic energy doesn't change after collision.                      

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