CBSE Class 11-science Answered
The de Broglie wavelength of an electron travelling with 20% of velocity of light is nearly equal to
Asked by arushidabhade | 13 Aug, 2019, 01:32: PM
Expert Answer
Velocity of light = 3×108 m/s
20% of velocity of light = 
=6×107 m/s
Mass of electron =9.1 ×10−31 kg
We know, wavelength λ can be calculated as,
Wavelength of electron is 1.21×10−11 m.
Answered by Varsha | 13 Aug, 2019, 03:43: PM
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