9th Class Science Sound Question Bank Sound

  • question_answer
    Frequency of the sinusoidal wave, \[y=0.40\,\,\cos \,\,(2000t+0.080)\]would be

    A) \[\text{1}00\text{ 7}\pi \text{ Hz}\]        

    B)         \[\text{2000}\,\,\text{Hz}\]

    C)  \[\text{20}\,\,\text{Hz}\]           

    D)         \[\frac{1000}{\pi }\,\,\text{Hz}\]  

    Correct Answer: D

    Solution :

    Not Available


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