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

Gujarat BoardEnglish MediumSTD 11 ScienceChemistry2. structure of atom1 Mark
MCQ
“The position and velocity of a small particle like electron cannot be simultaneously determined.” This statement is
  • ✓
    Heisenberg uncertainty principle
  • B
    Principle of de Broglie's wave nature of electron
  • C
    Pauli's exclusion principle
  • D
    Aufbau's principle
✓

Answer

Correct option: A.
Heisenberg uncertainty principle
a
According to the. Heisenberg's uncertainty principal momentum and exact position of an $e^{\ominus}$ can not be detesmined simultaneously.

$\Delta x \cdot \Delta p \geq \frac{h}{4 \pi}$

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