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RAJASTHAN PMT Rajasthan - PMT Solved Paper-2006

  • question_answer
    In a sinusoidal wave, the time required, for a particular point to move from maximum displacement to zero displacement is 0.17 s. The frequency of the wave is:

    A)  1.47 Hz                                

    B)         2.94 Hz                

    C)         0.73 Hz                                

    D)         0.36 Hz

    Correct Answer: A

    Solution :

    Time for maximum displacement\[t=0.17\,\,s\]. Time period \[T\] for one vibration                 \[=4t=4\times 0.17\]                 \[=0.68\,\,s\]. Frequency          \[\frac{1}{time\,\,period\,\,(T)}\]                 \[=\frac{1}{0.68}\]                                 \[=1.47\,\,Hz\]


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