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AIIMS AIIMS Solved Paper-1999

  • question_answer
    If vibrations of a string are to be increased by a factor two, then tension in the string must be made

    A) four times        

    B)                        half                       

    C)        twice                    

    D)        eight times.

    Correct Answer: A

    Solution :

                    We know that the frequency of a mechanical wave created in a string is given by \[\upsilon =\frac{1}{2\pi }\sqrt{\frac{T}{m}}\] \[\therefore \]To double the vibrations, tension T has to be raised by a factor of 4.


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