What is the wavelength of an electron with a mass of 9.109×10−31 kg and a velocity of 3.43×107 ms? Use 6.626×10−34kg m2s for Planck's constant. Your answer should include three significant figures.

The wavelength of an electron is

Explanation:

To calculate the wavelength of a particle, we use the equation given by De-Broglie's wavelength, which is:

where,

= De-Broglie's wavelength = ?

h = Planck's constant =

m = mass of electron =

v = velocity of electron =

Putting values in above equation, we get:

Hence, the wavelength of an electron is

a is the correct answer