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

  • question_answer
    A source of sound of frequency 600 Hz is placed inside water. The speed of sound in water is 1500 m/s and in air is 300 m/s. The frequency of sound recorded by an observer who is standing in air is                   [IIT-JEE Screening 2004]

    A)            200 Hz                                     

    B)            3000 Hz

    C)            120 Hz                                     

    D)            600 Hz

    Correct Answer: D

    Solution :

               Frequency of sound does not change with medium, because it is characteristics of source.


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