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bija089 [108]
3 years ago
6

The de broglie wavelength of an electron is 8.7 Ã 10-11 m. the mass of an electron is 9.1 Ã 10-31 kg. the velocity of this elect

ron is ________ m/s.
Physics
1 answer:
LekaFEV [45]3 years ago
5 0
<span>wavelength of an electron l = h/p = 8.7 x 10^-11 h --> Planck's Constant m --> Momentum Wavelength l = h/p = h/mv = > v = h/(m*l) From the given values, m = 9.1 x 10^-31 kg l = 8.7 x 10^-11 m h = 6.626x10^-34 Js v = 6.626x10^-34/ ((9.1 x 10^-31)*(8.7 x 10^-11)) The velocity of electron v = 8.37x10^6 m/s</span>
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