Which of the following is the correct formula for the Heisenberg uncertainty principle?

  • A
    $\Delta x \cdot \Delta p \ge \frac{h}{4\pi}$
  • B
    $\Delta x \cdot \Delta p = \frac{h}{4\pi}$
  • C
    $\Delta x \cdot \Delta p \le \frac{h}{4\pi}$
  • D
    $\Delta x \cdot \Delta p < \frac{h}{4\pi}$

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