Solved papers for JEE Main & Advanced AIEEE Solved Paper-2008

done AIEEE Solved Paper-2008 Total Questions - 4

• question_answer1) A student measures the focal length of a convex lens by putting an object pin at a distance 'u' from the lens and measuring the distance 'v' of the image pin. The graph between 'u' and 'v' plotted by the student should look like       AIEEE  Solved  Paper-2007
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• question_answer2) Directions: Questions No. 75 are based on the following paragraph Consider a block of conducting material of resistivity '\[\rho \]' shown in the figure. Current 'I' enters at 'A' and leaves from 'D' . We apply superposition principal to find voltage '\[\Delta V\]' developed between 'B' and 'C' .  The calculation is done in the following steps: (i) Take current 'I' entering from 'A' and assume it to spread over a hemispherical surface in the block. (ii) Calculate field E(r) at distance 'r' from A by using Ohm's law \[E=\rho j\], where 'j' is the current per unit area at 'r'. (iii) From the 'r' dependence of E(r), obtain the potential V(r) at 'r'. (iv) Repeat (i), (ii) and (iii) for current 'I' leaving 'D' and superpose results for 'A' and 'D'.        \[\Delta V\] measured between B and C is     AIEEE  Solved  Paper-2007
  A)
  \[\frac{\rho I}{2\pi a}-\frac{\rho I}{2\pi \left( a+b \right)}\]
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  B)
  \[\frac{\rho I}{2\pi \left( a-b \right)}\]   
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  C)
  \[\frac{\rho I}{\pi a}-\frac{\rho I}{\pi \left( a+b \right)}\]
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  D)
  \[\frac{\rho I}{a}-\frac{\rho I}{\left( a+b \right)}\]
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• question_answer3) The speed of sound in oxygen \[({{O}_{2}})\] at a certain temperature is 460 \[m{{s}^{-1}}\]. The speed of sound in helium (He) at the same temperature will be (assume both gases to be ideal)       AIEEE  Solved  Paper-2007
  A)
  650 \[m{{s}^{-1}}\]         
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  B)
         330 \[m{{s}^{-1}}\]         
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         460 \[m{{s}^{-1}}\]         
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  D)
         500 \[m{{s}^{-1}}\]
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• question_answer4) A spherical solid ball of volume V is made of a material of density \[{{\rho }_{1}}\]. It is falling through a liquid of density \[{{\rho }_{2}}\left( {{\rho }_{2}}<{{\rho }_{1}} \right)\]. Assume that the liquid applies a viscous force on the ball that is proportional to the square of its speed v, i.e.\[{{F}_{viscous}}=-k{{v}^{2}}(k>0)\]. The terminal speed of the ball is       AIEEE  Solved  Paper-2007
  A)
  \[\sqrt{\frac{Vg{{\rho }_{1}}}{k}}\]         
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  B)
         \[\frac{Vg\left( {{\rho }_{1}}-{{\rho }_{2}} \right)}{k}\]
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  C)
                                         \[\sqrt{\frac{Vg\left( {{\rho }_{1}}-{{\rho }_{2}} \right)}{k}}\]                
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  D)
                         \[\frac{Vg{{\rho }_{1}}}{k}\]
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