Calculate the speed of an electron if its de broglie wavelength is twice its displacement in one second

The speed of an electron is 0.01908 m/s.

Explanation:

De-Broglie wavelength is given by:

where,   = wavelength of a particle

h = Planck's constant =

m = mass of particle

v = velocity of the particle

Velocity of an electron = v

Mass of an electron =

Wavelength of electron is twice the displacement in seconds which is velocity of an electron.

Then.wavelength of an electron =

v = 0.01908 m/s

The speed of an electron is 0.01908 m/s.