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एक इल्कट्रोन जिसकी गतिज ऊर्जा 120 eV है, उसका डी-ब्रॉगली तरनदीघार्य क्या है ?

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एक इल्कट्रोन जिसकी गतिज ऊर्जा 120 eV है, उसका डी-ब्रॉगली तरनदीघार्य क्या है ?
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दिया है --- गतिज ऊर्जा `=120eV`
`=120 xx 1*6 xx 10^(-19) J`
`lamda = h/p=(6*6x10^(-34))/(5*91 xx 10^(-24)) `
`= 0 * 112 xx 10^(-9)m`
` = 0*112 m`
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