Uncertainty in position of electron is `10^(-10)` m. uncertainty in its momentum will be…….`kgms^(-1).(h=6.62xx10^(-34) J-s)`

Options

A. `1.05xx10^(-24)`
B. `1.03xx10^(-24)`
C. `1.06xx10^(-24)`
D. `1.08xx10^(-24)`

Answer

B

Explanation

From Heisenberg uncertainty principle,
`Deltax.Deltap=(h)/(lpi)`
`Deltap=(h)/(2piDeltax)=(6.62xx10^(-34))/(2xx3.14xx10^(-10))`
`therefore Deltap=1.05xx10^(-24)kg ms^(-1)`