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