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Question
The speed of electron having de Broglie wavelength of 10 -10 m is ______
(me = 9.1 × 10-31 kg, h = 6.63 × 10-34 J-s)
Options
7.28 × 106 m/s
4 × 106 m/s
8 × 105 m/s
5.25 × 105 m/s
Solution
The speed of electron having de Broglie wavelength of 10 -10 m is 7.28 × 106 m/s.
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