Physics

The de Broglie wavelength of an electron is given by the formula: λ = h/mv, where h is Planck's Constant (6.626 x 10^-34 joule-seconds), m is the mass of the electron (9.11 x 10^-31 kilograms), and v is the speed of the electron. In this case, the speed of the electron is 0.1c (where c is the speed of light, 3 x 10^8 m/s). Using the formula, we get λ = (6.626 x 10^-34)/(9.11 x 10^-31 x 0.1 x 3 x 10^8) = 2.313 x 10^-14 meters. This is the de Broglie wavelength of the electron that is striking the back of the TV screen at 1/10 the speed of light.