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Solved papers for JEE Main & Advanced JEE Main Solved Paper-2014

done JEE Main Solved Paper-2014 Total Questions - 2

  • question_answer1) 
  • A bob of mass m attached to an inextensible string of length l is suspended from a vertical support. The bob rotates in a horizontal circle with an angular speed \[\omega \]rad/s about the vertical. About the point of suspension:
    • JEE Main  Solved  Paper-2014

A)
angular momentum changes in direction but not in magnitude.

B)
angular momentum changes both in direction and magnitude.

C)
 angular momentum is conserved.

D)
angular momentum changes in magnitude but not in direction.

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  • question_answer2) A mass 'm' is supported by a massless string wound around a uniform hollow cylinder of mass m andradius R. If the string does not slip on the cylinder, with what acceleration will the mass fall on release?   JEE Main  Solved  Paper-2014

    A)
    \[\frac{5g}{6}\]                                

    B)
    g

    C)
    \[\frac{2g}{3}\]                                

    D)
    \[\frac{g}{2}\]

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