2. Solved Papers
  3. JIPMER

JIPMER Jipmer Medical Solved Paper-2000

  • question_answer
    If the pressure amplitude in a sound wave is tripled, then the intensity of sound is increased by a factor of:

    A)  6                                            

    B)         3                            

    C)         9                                            

    D)         \[\sqrt{3}\]

    Correct Answer: C

    Solution :

    From the relation intensity \[\propto \] (amplitude)2 \[I\propto {{a}^{2}}\] Hence,  \[\frac{{{I}_{1}}}{{{I}_{2}}}=\frac{a_{1}^{2}}{a_{2}^{2}}=\frac{{{a}^{2}}}{{{(3a)}^{2}}}=\frac{1}{9}\] so,          \[{{I}_{2}}=9I\]


You need to login to perform this action.
You will be redirected in 3 sec spinner