A particle of mass 1 mg has the same wavelength as an electron moving with a velocity of ` 3 xx 10^6 m s^(-1)`. The velocity of the particle is :

Options

A. `3 xx 10^ (-31) m s ^(-1)`
B. `2.7 xx 10 ^(-21) m s ^(-1)`
C. `2.7 xx 10^(-18) m s ^(-1)`
D. `9 xx 10 ^(-2) m s ^(-1) `

Answer

C