The position of both , an electron and a helium atom is known within 1.0 nm. Further the momentum of the electron is known within `5.0xx10^(-26) kgms^(-1)` The minimum uncertainty in the measurement of the momentum of the helium atom is

Options

A. `50 kg ms^(-1)`
B. `5.0 xx 10^(-26) kg ms^(-1)`
C. `80 kg ms^(-1)`
D. `80 xx 10^(-26) k ms^(-1)`

Answer

B

Explanation

`Deltax Delta p =` const. As `Delta x` is same, `Delta p` will be same