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

JEE Main & Advanced Physics Wave Mechanics Question Bank Basics of Mechanical Waves

  • question_answer
    A man sets his watch by a whistle that is 2 km away. How much will his watch be in error. (speed of sound in air 330 m/sec)                                                        [MP PET 1991]

    A)            3 seconds fast                     

    B)            3 seconds slow

    C)            6 seconds fast                     

    D)            6 seconds slow

    Correct Answer: D

    Solution :

               Time lost in covering the distance of 2 \[km\] by the sound waves \[t=\frac{d}{v}=\frac{2000}{330}=6.06\]sec  » 6 sec


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