Solved papers for JEE Main & Advanced AIEEE Solved Paper-2003

done AIEEE Solved Paper-2003 Total Questions - 4

• question_answer1) In Bohr series of lines of hydrogen spectrum, the third line from the red end corresponds to which one of the following inner-orbit jumps of the electron for Bohr orbits in an atom of hydrogen?     AIEEE  Solved  Paper-2003
  A)
  \[3\to 2\] 
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  B)
                        \[5\to 2\]
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  C)
  \[4\to 1\]                            
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  D)
  \[2\to 5\]
  done clear
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• question_answer2) The de-Broglie wavelength of a tennis ball of mass 60g moving with a velocity of 10 m/s is approximately (Planck's constant, \[h=6.63\times {{10}^{-34}}\] Js)     AIEEE  Solved  Paper-2003
  A)
  \[{{10}^{-33}}\] m
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  B)
                        \[{{10}^{-31}}\] m                           
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  C)
   \[{{10}^{-16}}\]m          
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  D)
         \[{{10}^{-25}}\] m
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• question_answer3) The orbital angular momentum for an electron revolving in an orbit is given by \[\sqrt{l(l+1)}\frac{h}{2\pi }\]. This momentum for an s-electron will be given by
  A)
  \[+\frac{1}{2}.\,\frac{h}{2\pi }\]           
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  B)
        zero      
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  C)
  \[\,\frac{h}{2\pi }\]                        
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  D)
        \[\sqrt{2}\,.\,\frac{h}{2\pi }\]
  done clear
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• question_answer4) Which one of the following group represents a collection of isoelectronic species? (At. no. Cs-55. Br-35)     AIEEE  Solved  Paper-2003
  A)
                          \[N{{a}^{+}},C{{a}^{2+}},M{{g}^{2+}}\]
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  B)
        \[{{N}^{3-}},{{F}^{-}},N{{a}^{+}}\]
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  C)
        Be, \[A{{l}^{3+}},C{{l}^{-}}\]      
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  D)
        \[C{{a}^{2+}},C{{s}^{+}},Br\]
  done clear
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