What is the de Broglie wavelength of an electron that strikes the back of the face of a TV screen at 1 15 the speed of light

Te wavelength is 3.66 x 10^-11 m

Explanation:

Question is

What is the de Broglie wavelength of an electron that strikes the back of the face of a TV screen at 1/15 the speed of light.

De Broglie's wavelength is gotten as

λ = h/mv

where

λ is the wavelength of the electron

h is the Planck's constant = 6.67 x 10^-34 J-s

m is the mass of an an electron = 9.109 x 10^-31 kg

v is the speed of the electron.

The speed of the electron is given as 1/15 of the speed of light

Speed of electron = 1/15 of 3 x 10^8 = 2.0 x 10^7 m/s

substituting values, we have

λ = (6.67 x 10^-34)/(9.109 x 10^-31)x(2.0 x 10^7) = 3.66 x 10^-11 m

answera compound;

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