Solved papers for JEE Main & Advanced JEE Main Paper (Held On 26 May 2012)

done JEE Main Paper (Held On 26 May 2012) Total Questions - 2

• question_answer1) An air column in a pipe, which is closed at one end, will be in resonance with a vibrating tuning fork of frequency 264 Hz if the length of the column in cm is (velocity of sound = 330 m/s)   JEE Main Online Paper (Held On 26-May-2012)  
  A)
  125.00                                  
  done clear
  B)
                         93.75
  done clear
  C)
                          62.50                                   
  done clear
  D)
                         187.50
  done clear
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• question_answer2) The disturbance y (x, t) of a wave propagating in the positive x-direction is given by \[y=\frac{1}{1+{{x}^{2}}}\] at time t = 0 and by \[y=\frac{1}{\left[ 1+{{\left( x-1 \right)}^{2}} \right]}\]at t = 2 s, where x and y are in meters. The shape of the wave disturbance does not change during the propagation. The velocity of wave in m/s is.   JEE Main Online Paper (Held On 26-May-2012)  
  A)
  2.0                                         
  done clear
  B)
  4.0
  done clear
  C)
  0.5                                         
  done clear
  D)
  1.0
  done clear
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