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The de Broglie wavelength of an electron...

The de Broglie wavelength of an electron (mass `=1 xx 10^(-30)kg`, charge `=1.6 xx 10^(-19)C`) with a kinetic energy of 200eV is (Planck's constant `=6.6 xx 10^(-34)Js`)

A

`9.60 xx 10^(-11)m`

B

`8.25 xx 10^(-11)m`

C

`6.25 xx 10^(-11)m`

D

`5.00 xx 10^(-11)m`

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