According to the Heisenberg uncertainty principle,which of the following expressions is correct?

Which of the following is the correct formula for the Heisenberg uncertainty principle?

The uncertainty in the position of an electron $(mass = 9.1 \times 10^{-28} \ g)$ moving with a velocity of $3.0 \times 10^4 \ cm \ s^{-1}$ accurate up to $0.001\%$ will be ................. $cm$ (Use $\frac{h}{4\pi}$ in the uncertainty expression,where $h = 6.626 \times 10^{-27} \ erg \ s$)

In an atom,an electron is moving with a speed of $600 \ m/sec$ with an uncertainty of $0.005\%$. The uncertainty with which the position of the electron can be located is:

The possibility of finding an electron in an orbital was conceived by

If uncertainty in position and momentum of an electron are equal,then uncertainty in its velocity is