It is not possible to determine precisely both the position and the momentum or velocity) of a small moving particle (e.g. electron , proton, etc)
The uncertainity in position and velocity of a particle are `10^(-10)m` and `5.27 xx 10^(-24) ms^(-1)` respectively, Calculate the mass of the particle. `(h = 6.625 xx 10^(-34)J-s)`

Options

A. 0.099 kg
B. 1 kg
C. 2 kg
D. 10 kg

Answer

A

Explanation

According to Heisenberg.s uncertainity principle , `Deltax . M Delta upsilon implies m =(h)/(4 pi Delta x . Delta upsilon)`
`=(6.625 xx 10^(-34))/(4xx 3.143 xx 10^(-10) xx 5.27 xx 10^(-24)) = 0.099 kg `