Which of the following equations represents Heisenberg's Uncertainty Principle? a \Delta x^2 \Delta p = \frac{h}{2 \pi} b \Delta x \Delta p = \frac{h}{2 \pi} c \Delta x^2 \Delta p^2 = \frac{h}{2 \pi} d \Delta x \Delta p = \frac{h}{4 \pi^2}