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Find the a. maximum frequency, and b. minimum wavelength of X-rays produced by 30 kV electrons. |
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Answer» Solution :`V=30kV=30xx10^(3)V, K_("max")=eV=1.6xx10^(-10)xx30xx10^(3)` a. `h upsilon=eV` `upsilon=(E )/(h)V=(1.6xx10^(-19)xx30xx10^(3))/(6.62xx10^(-34))=7.25xx10^(18)Hz` b. `v=upsilon lambda` `lambda=(v)/(upsilon)=(3xx10^(8))/(7.25xx10^(18))=0.414xx10^(-10)m=0.0414xx10^(-9)m=0.0414 nm` |
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