The equation $\Delta x \cdot \Delta p \ge \frac{h}{4\pi}$ shows

The effect of the uncertainty principle is significant only for the motion of microscopic particles and is negligible for macroscopic particles. Justify the statement with the help of a suitable example.

What will be the mass of a particle if uncertainty in its position is $10^{-8} \ m$ and uncertainty in velocity is $5.26 \times 10^{-25} \ m \ s^{-1}$? ............... $kg$

$A$ microscope using appropriate photons is engaged to track an electron in an atom within a distance of $0.001 \ nm$. What will be the uncertainty involved in measuring its velocity?

Explain the graph of $\psi(r)$ and $\psi^2(r)$ with distance $r$ from the nucleus.

Heisenberg's uncertainty principle is not valid for: