-
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
View Solution play_arrow
-
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
View Solution play_arrow
-
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
View Solution play_arrow
-
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
View Solution play_arrow
-
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
View Solution play_arrow
-
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
View Solution play_arrow
-
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
View Solution play_arrow
-
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
View Solution play_arrow
-
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
View Solution play_arrow
-
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
View Solution play_arrow
-
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
View Solution play_arrow
-
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
View Solution play_arrow
-
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
View Solution play_arrow
-
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
View Solution play_arrow
-
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
View Solution play_arrow
-
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
View Solution play_arrow
-
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
View Solution play_arrow
-
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
View Solution play_arrow
-
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
View Solution play_arrow
-
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
View Solution play_arrow
-
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
View Solution play_arrow