2. Solved Papers
  3. CEE Kerala Engineering

CEE Kerala Engineering CEE Kerala Engineering Solved Paper-2002

  • question_answer
    If the speed of light were 2/3 of its present value, the energy released in a given atomic explosion would:

    A)  decrease by a factor 2/3

    B)  decrease by a factor 4/9

    C)  decrease by a factor 5/9

    D)  decrease by a factor\[\sqrt{5}/9\]

    E)  increase by a factor 2/3

    Correct Answer: C

    Solution :

    Since, \[E=\Delta m{{c}^{2}}\Rightarrow E\propto {{c}^{2}}\] \[\therefore \]\[\frac{E-E}{E}=1-{{\left( \frac{2}{3} \right)}^{2}}=\frac{5}{9}\]


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