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Haryana PMT Haryana PMT Solved Paper-2004

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

    A)  0.38 Hz                                

    B)  0.78 Hz

    C)  2.9 Hz                                  

    D)  1.56 Hz

    Correct Answer: D

    Solution :

                                             Here: Time required for maximum displacement \[t=0.17\text{ }sec\] We know that the period of sinusoidal wave \[T=4t=4\times 0.16=0.64\] Now frequency of wave                                 \[v=\frac{1}{T}=\frac{1}{0.64}=1.56Hz\]


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