1 answer

The mass of an electron is 9.11times 10^{-31}~rm kg. If the de Broglie wavelength for an...

Question:

The mass of an electron is 9.11times 10^{-31}~rm kg. If the de Broglie wavelength for an electron in a hydrogen atom is 3.31times 10^{-10}~rm m, how fast is theelectron moving relative to the speed of light? The speed of light is 3.00times10^8 ~rm m/s.

Answers

λ = h/mv

So, v = h/mλ =2.199*10^6 m/s

relative to light =v/c = 7.33*10^-3

.

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