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AFMC AFMC Solved Paper-2002

  • question_answer
    For a given material the Young's modulus is 2.4 times that of rigidity modulus, the Poissons's ratio is:

    A) 0.2                                         

    B) 0.4

    C) 1.2                                         

    D) 2.4

    Correct Answer: A

    Solution :

    For Young's modulus Y the poisons? ratio is given by \[Y=2\eta (1+\sigma )\] \[\therefore \] \[\sigma =\frac{y}{2\eta }-1=\frac{2.4\eta }{2\eta }-1=0.2\]


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