An X-ray tube is operated at 1.24 million volt. The shortest wavelength of the produced photon will be :

Question:

An X-ray tube is operated at $1.24$ million volt. The shortest wavelength of the produced photon will be :

  1. (1) $10^{-2} \mathrm{~nm}$

  2. (2) $10^{-3} \mathrm{~nm}$

  3. (3) $10^{-4} \mathrm{~nm}$

  4. (4) $10^{-1} \mathrm{~nm}$


Correct Option: , 2

Solution:

(2)

$\lambda_{\min }=\frac{h c}{\mathrm{eV}}$

$\lambda_{\min }=\frac{1240 \mathrm{~nm}-\mathrm{eV}}{1.24 \times 10^{6}}$

$\lambda_{\min }=10^{-3} \mathrm{~nm}$

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