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Question
Calculate the de Broglie wavelength associated with an electron moving with a speed of `5 xx 10^6` m/s. `(m_e = 9.1 xx 10^(-31)kg)`
Numerical
Solution
λ = `h/(mv)`
= `(6.63xx10^(-34))/(9.1xx10(-31)xx5xx10^6)`
= `0.1457 xx10^(-9)m`
=`1.457xx10^(-10)m`
λ = 1.457 A
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De Broglie Hypothesis
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