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JEE Main & Advanced Sample Paper JEE Main - Mock Test - 25

  • question_answer
    Two tuning forks, A and B, produce notes of frequencies \[258\text{ }Hz\]and\[262\text{ }Hz\]. An unknown note sounded with A produces certain beats. When the same note is sounded with B, the beat frequency gets doubled. What is the unknown frequency (in Hz)?

    Answer:

    254


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