Choose the correct statement.

If you are driving a car of mass $1050 \, kg$ at a speed of $90 \, km/h$ and the uncertainty in the velocity of the car is $1 \, \%$,what will be the uncertainty in its position?

What is quantum mechanics? Give its primary information.

The equation $\Delta x \cdot \Delta p \geqslant \frac{h}{4\pi}$ represents:

If a proton is accelerated to a velocity of $3 \times 10^7 \text{ ms}^{-1}$ which is accurate up to $\pm 0.5 \%$,then the uncertainty in its position will be $\ldots \ldots \ldots$ [mass of proton $= 1.66 \times 10^{-27} \text{ kg}$,$h = 6.6 \times 10^{-34} \text{ Js}$]

Which one of the following conditions is incorrect for a well-behaved wave function $(\psi)$?