JEE Main & Advanced Chemistry Structure of Atom / परमाणु संरचना Question Bank

done Dual nature of electron Total Questions - 21

• question_answer1)
  De broglie equation describes the relationship of wavelength associated with the motion of an electron and its [MP PMT 1986]
  A)
                  Mass     done clear
  B)
                  Energy done clear
  C)
                  Momentum       done clear
  D)
                  Charge done clear
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• question_answer2)
  The wave nature of an electron was first given by [CMC Vellore 1991; Pb. PMT 1998; CPMT 2004]
  A)
                  De-Broglie           done clear
  B)
                  Heisenberg done clear
  C)
                  Mosley done clear
  D)
                  Sommerfield done clear
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• question_answer3)
  Among the following for which one mathematical expression \[\lambda =\frac{h}{p}\] stands
  A)
                  De Broglie equation        done clear
  B)
                  Einstein equation done clear
  C)
                  Uncertainty equation     done clear
  D)
                  Bohr equation done clear
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• question_answer4)
  Which one of the following explains light both as a stream of particles and as wave motion [AIIMS 1983; IIT 1992; UPSEAT 2003]
  A)
                  Diffraction           done clear
  B)
                  \[\lambda =h/p\] done clear
  C)
                  Interference      done clear
  D)
                  Photoelectric effect done clear
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• question_answer5)
  In which one of the following pairs of experimental observations and phenomenon does the experimental observation correctly account for phenomenon                                         [AIIMS 1983]
  A)
   Experimental observation -\[X\]-ray spectra                                   Phenomenon-Charge on the nucleus done clear
  B)
   Experimental observation -\[\alpha \]-particle scattering                          Phenomenon-Quantized electron orbit done clear
  C)
   Experimental observation -Emission spectra                   Phenomenon-The quantization of energy done clear
  D)
   Experimental observation -The photoelectric effect    Phenomenon-The nuclear atom done clear
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• question_answer6)
  Which of the following expressions gives the de-Broglie relationship       [MP PMT 1996, 2004; MP PET/PMT 1998]
  A)
                  \[h=\frac{\lambda }{mv}\]           done clear
  B)
                  \[\lambda =\frac{h}{mv}\] done clear
  C)
                  \[\lambda =\frac{m}{hv}\]           done clear
  D)
                  \[\lambda =\frac{v}{mh}\] done clear
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• question_answer7)
  de-Broglie equation is    [MP PMT 1999; CET Pune 1998]
  A)
                  \[n\lambda =2d\sin \theta \]      done clear
  B)
                  \[E=hv\] done clear
  C)
                  \[E=m{{c}^{2}}\] done clear
  D)
                  \[\lambda =\frac{h}{mv}\] done clear
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• question_answer8)
  The de-Broglie wavelength of a particle with mass \[1gm\] and velocity \[100m/\sec \] is              [CBSE PMT 1999; EAMCET 1997; AFMC 1999; AIIMS 2000]
  A)
                  \[6.63\times {{10}^{-33}}m\]      done clear
  B)
                  \[6.63\times {{10}^{-34}}m\] done clear
  C)
                  \[6.63\times {{10}^{-35}}m\]      done clear
  D)
                  \[6.65\times {{10}^{-35}}m\] done clear
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• question_answer9)
  Minimum de-Broglie wavelength is associated with [RPMT 1999]
  A)
                  Electron               done clear
  B)
                  Proton done clear
  C)
                  \[C{{O}_{2}}\] molecule                done clear
  D)
                  \[S{{O}_{2}}\] molecule done clear
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• question_answer10)
  The de-Broglie wavelength associated with a material particle is                                                [JIPMER 2000]
  A)
                  Directly proportional to its energy done clear
  B)
                  Directly proportional to momentum done clear
  C)
                  Inversely proportional to its energy done clear
  D)
                  Inversely proportional to momentum done clear
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• question_answer11)
  An electron has kinetic energy \[2.8\times {{10}^{-23}}J\]. de-Broglie wavelength will be nearly \[({{m}_{e}}=9.1\times {{10}^{-31}}kg)\]                                               [MP PET 2000]
  A)
                  \[9.28\times {{10}^{-4}}\,m\]     done clear
  B)
                  \[9.28\times {{10}^{-7}}\,m\] done clear
  C)
                  \[9.28\times {{10}^{-8}}\,m\]     done clear
  D)
                  \[9.28\times {{10}^{-10}}\,m\] done clear
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• question_answer12)
  What will be de-Broglie wavelength of an electron moving with a velocity of \[1.2\times {{10}^{5}}\,m{{s}^{-1}}\]             [MP PET 2000]
  A)
                  \[6.068\times {{10}^{-9}}\]          done clear
  B)
                  \[3.133\times {{10}^{-37}}\] done clear
  C)
                  \[6.626\times {{10}^{-9}}\]          done clear
  D)
                  \[6.018\times {{10}^{-7}}\] done clear
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• question_answer13)
  The de-Broglie wavelength associated with a particle of mass \[{{10}^{-6}}kg\] moving with a velocity of \[10\,\,m{{s}^{-1}}\], is [AIIMS 2001]
  A)
                  \[6.63\times {{10}^{-22}}m\]      done clear
  B)
                  \[6.63\times {{10}^{-29}}\,m\] done clear
  C)
                  \[6.63\times {{10}^{-31}}\,m\] done clear
  D)
                  \[6.63\times {{10}^{-34}}\,m\] done clear
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• question_answer14)
  What is the de-Broglie wavelength associated with the hydrogen electron in its third orbit                 [AMU (Engg.) 2002]
  A)
                  \[9.96\times {{10}^{-10}}cm\]    done clear
  B)
                  \[9.96\times {{10}^{-8}}cm\] done clear
  C)
                  \[9.96\times {{10}^{4}}cm\]        done clear
  D)
                  \[9.96\times {{10}^{8}}cm\] done clear
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• question_answer15)
  If the velocity of hydrogen molecule is \[5\times {{10}^{4}}cm\,se{{c}^{-1}}\], then its de-Broglie wavelength is                 [MP PMT 2003]
  A)
  \[2\text{ }{AA}\] done clear
  B)
  \[4{AA}\] done clear
  C)
  \[8{AA}~\] done clear
  D)
  \[100\text{ }{AA}\] done clear
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• question_answer16)
  A 200g golf ball is moving with a speed of 5 m per hour. The associated wave length is \[(h=6.625\times {{10}^{-34}}J\text{-}sec)\] [MP PET 2003]
  A)
                  \[{{10}^{-10}}\,m\]          done clear
  B)
                  \[{{10}^{-20}}\,m\] done clear
  C)
                  \[{{10}^{-30}}\,m\]          done clear
  D)
                  \[{{10}^{-40}}\,m\] done clear
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• question_answer17)
  A cricket ball of \[0.5\,kg\] is moving with a velocity of \[100\,m/\sec \]. The wavelength associated with its motion is [DCE 2004]
  A)
                  \[1/100cm\]       done clear
  B)
                  \[6.6\times {{10}^{-34}}m\] done clear
  C)
                  \[1.32\times {{10}^{-35}}m\]      done clear
  D)
                  \[6.6\times {{10}^{-28}}m\] done clear
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• question_answer18)
  Dual nature of particles was proposed by             [DCE 2004]
  A)
                  Heisenberg         done clear
  B)
                  Lowry done clear
  C)
                  de-Broglie           done clear
  D)
                  Schrodinger done clear
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• question_answer19)
  Calculate de-Broglie wavelength of an electron travelling at 1% of the speed of light        [DPMT 2004]
  A)
                  \[2.73\times {{10}^{-24}}\]          done clear
  B)
                  \[2.42\times {{10}^{-10}}\] done clear
  C)
                  \[242.2\times {{10}^{10}}\]          done clear
  D)
                  None of these done clear
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• question_answer20)
  Which is the correct relationship between wavelength and momentum of particles         [Pb. PMT 2000]
  A)
                  \[\lambda =\frac{h}{P}\]              done clear
  B)
                  \[\pi =\frac{h}{P}\] done clear
  C)
                  \[P=\frac{h}{\lambda }\]              done clear
  D)
                  \[h=\frac{P}{\lambda }\] done clear
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• question_answer21)
  The de-Broglie equation applies                [MP PMT 2004]
  A)
                  To electrons only done clear
  B)
                  To neutrons only done clear
  C)
                  To protons only done clear
  D)
                  All the material object in motion done clear
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