NEET Sample Paper NEET Sample Test Paper-4

  • question_answer A string of mass m and length L is hung vertically from a ceiling and a mass m is attached its lower end. A wave pulse is generated at the lower end. The velocity of the generated pulse as it moves up towards the ceiling will:

    A)  remain constant  

    B)  increase

    C)  decrease linerely 

    D)  decrease non-linerly

    Correct Answer: B

    Solution :

    As the pulse goes up the tension in the string increases and velocity in the strong, \[V\propto \sqrt{T}\] \[\therefore \]Velocity of the pulse will keep increasing at the pules moves upwards (i.e., towards the oiling).


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