De broglie wavelength of an electron is equal to 10-3 times the wavelength of a hoton of frequency
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f the de Broglie wavelength of an electron is equal to 10-3 times the wavelength of a photon of frequency 6X1014Hz, then the speed of electron is equal to: (Speed of light 3X108m/s. Plank's constant = 6.63X10-34 J.s. Mass of electron = 9.1X10-31kg)
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