Solved papers for JEE Main & Advanced JEE Main Paper (Held On 19 May 2012)

done JEE Main Paper (Held On 19 May 2012) Total Questions - 2

• question_answer1) A glass prism of refractive index 1.5 is immersed in water (refractive index \[\frac{4}{3}\]) as shown in figure. A light beam incident normally on the face AB is totally reflected to reach the face BC, if     JEE Main  Online Paper (Held On 19  May  2012)
  A)
  \[\sin \theta >\frac{5}{9}\]                         
  done clear
  B)
                         \[\sin \theta >\frac{2}{3}\]
  done clear
  C)
                         \[\sin \theta >\frac{8}{9}\]         
  done clear
  D)
                         \[\sin \theta >\frac{1}{3}\]
  done clear
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• question_answer2) A 6.0 volt battery is connected to two light bulbs as shown in figure. Light bulb 1 has resistance 3 ohm while light bulb 2 has resistance 6 ohm. Battery has negligible internal resistance. Which bulb will glow brighter?     JEE Main  Online Paper (Held On 19  May  2012)
  A)
  Bulb 1 will glow more first and then its brightness will become less than bulb 2
  done clear
  B)
                         Bulbl
  done clear
  C)
                         Bulb2
  done clear
  D)
                         Both glow equally
  done clear
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