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

  • question_answer
    A source of sound emits waves with frequency f  Hz and speed V m/sec. Two observers move away from this source in opposite directions each with a speed 0.2 V relative to the source. The ratio of frequencies heard by the two observers will be                                                        [MP PET 1990]

    A)            3 : 2                                          

    B)            2 : 3

    C)            1 : 1                                          

    D)            4 : 10

    Correct Answer: C

    Solution :

               Both listeners, hears the same frequencies.


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