2. Questions Bank
  3. JEE Main & Advanced
  4. Physics
  5. Wave Mechanics

JEE Main & Advanced Physics Wave Mechanics Question Bank Graphical Questions

  • question_answer
    A sound source emits sound waves in a uniform medium. If energy density is E and maximum speed of the particles of the medium is \[{{v}_{\max }}.\]The plot between E and \[{{v}_{\max }}\] is best represented by      

    A)                                      

    B)                                      

    C)                                       

    D)

    Correct Answer: C

    Solution :

                       Energy density (E) \[=\frac{I}{v}=2{{\pi }^{2}}\rho {{n}^{2}}{{A}^{2}}\]                    \[{{v}_{\max }}=\omega A=2\pi nA\]Þ \[E\propto {{({{v}_{\max }})}^{2}}\]            i.e., graph between E and \[{{v}_{\max }}\] will be a parabola symmetrical about E axis.


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