If $\Delta y$ and $\Delta P_y$ are the uncertainties in the y – coordinate and the y component of the momentum of a particle respectively, then, according to uncertainty principle $\Delta y \Delta P_y$ is: $\left(\hbar = \frac{h}{2\pi}\right.$ and h is Planck's constant$\left.\right)$
(a)$> \hbar$
(b)$> \hbar/2$
(c)$> \hbar$
(d)$\geq \hbar/2$
Answer
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