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

done JEE Main Solved Paper-2014 Total Questions - 2

• question_answer1) A thin convex lens made from crown glass\[\left[ \mu =\frac{3}{2} \right]\]has focal length f. When it is measured in two different liquids having refractive indices\[\frac{4}{3}\]and\[\frac{5}{3},\]it has the focal lengths f1 and f2 respectively. The correct relation between the focal lengths is :   JEE Main  Solved  Paper-2014
  A)
  \[{{f}_{2}}>f\]and\[{{f}_{1}}\] becomes negative
  done clear
  B)
  \[{{f}_{1}}\]and\[{{f}_{2}}\] both become negative
  done clear
  C)
  \[{{f}_{1}}={{f}_{2}}<f\]
  done clear
  D)
  \[{{f}_{1}}>f\]and\[{{f}_{2}}\]becomes negative
  done clear
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• question_answer2) A green light is incident from the water to the air - water interface at the critical angle (θ). Select the correct statement.   JEE Main  Solved  Paper-2014
  A)
  The spectrum of visible light whose frequency is more than that of green light will come out to the air medium.
  done clear
  B)
  The entire spectrum of visible light will come out of the water at various angles to the normal.
  done clear
  C)
   The entire spectrum of visible light will come out of the water at an angle of \[90{}^\circ\] to the normal.
  done clear
  D)
  The spectrum of visible light whose frequency is less than that of green light will come out to the air medium.
  done clear
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