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

JEE Main & Advanced Physics Wave Mechanics Question Bank Doppler's Effect

  • question_answer
    A source of sound of frequency n is moving towards a stationary observer with a speed S. If the speed of sound in air is V and the frequency heard by the observer is \[{{n}_{1}}\], the value of \[{{n}_{1}}/n\] is                                         [MP PMT 1997]

    A)            \[(V+S)/V\]                          

    B)            \[V/(V+S)\]

    C)            \[(V-S)/V\]                           

    D)            \[V/(V-S)\]

    Correct Answer: D

    Solution :

               By using \[{n}'=n\frac{v}{v-{{v}_{S}}}\]Þ \[\frac{{{n}_{1}}}{n}=\left( \frac{V}{V-S} \right)\]


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