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NEET Sample Paper NEET Sample Test Paper-92

  • question_answer
    A mass of 2kg is whirled in a horizontal circle by means of a string at initial speed of 5 revolution per minute. Keeping the radius constant, the tension in the string is doubled. The new speed is nearly

    A) 2.25 rpm                      

    B) 7 rpm

    C) 10 rpm             

    D) 14 rpm

    Correct Answer: B

    Solution :

    [b] \[T=m{{\omega }^{2}}r\]


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