Find(a) maximum frequency,and(b)minimum wavelength of X-rays …
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Posted by Kelash Kanwar 6 years, 3 months ago
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Sia ? 6 years, 3 months ago
Here, V = 30kV {tex} = 30 \times {10^3}V = 3 \times {10^4}V{/tex}
{tex}{v_{\max }} = \frac{{eV}}{h} = \frac{{1.6 \times {{10}^{ - 19}} \times 3 \times {{10}^4}}}{{6.63 \times {{10}^{ - 34}}}}Hz{/tex}
{tex} = 7.24 \times {10^{18}}Hz{/tex}
{tex} \Rightarrow {\lambda _{\max }} = 0.414 \times {10^{ - 10}} = m = 0.414\mathop A\limits^o {/tex}
= 0.414 nm
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