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Find the value of De Broglei Wave-length of e-whose energy is 15 kev. |
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Answer» Wavelength =h/√2mEhenceWavelength =6.626*10^-34/√2*9.1*10^-31*15*10^3*1.6*10^-19as 1eV=1.6*10^-19JHencewavelength =6.626*10^-34/√273*10^-476.626*10^-34/√27.3*10^-46=6.626*10^-34/5.22*10^-23=1.27*10^-11m |
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