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2. structure of atom — Chemistry STD 11 Science — Question

Gujarat BoardEnglish MediumSTD 11 ScienceChemistry2. structure of atom1 Mark
MCQ
Which of the following statement is $correct$
  • ✓
    Electron can't exist inside the nucleus because uncertainty in speed becomes greater than speed of light
  • B
    The wavelength associated with the $1\ gm$ particle moving with the velocity of $100\ m/s$ has physical significance 
  • C
    It is possible to determine the position as well as momentum precisely for a very fast moving particle 
  • D
    Electron having total $K.E.$ of $'E_1'$ has wavelength associated with it equal to $\frac{{hc}}{{{E_1}}}$ [$h =$ Plank's constant]
✓

Answer

Correct option: A.
Electron can't exist inside the nucleus because uncertainty in speed becomes greater than speed of light
a

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