The measurement of the electron position is associated with an uncertainty in momentum, which is equal to `1 xx 10^-18 g cm s^-1`. The uncertainty in electron velocity is (mass of an electron is `9 xx 10^-28 g`)

Options

A. `1 xx 10^(9) cm s^(-1)`
B. `1 xx 10^(6) cm s^(-1)`
C. `1 xx 10^(5) cm s^(-1)`
D. `1 xx 10^(11) cm s^(-1)`

Answer

A

Explanation

`Deltap = m Delta v = 1 xx 10^(-18) g cm s^(-1)`
`Delta v = (1 xx 10^(-18) g cm s^(-1))/(9 xx 10^(-28)g)`
`:. = 1 xx 10^9 cm s^(-1)`