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NEET 2023 · Davisson-Germer, Uncertainty, Compton & X-Rays

Davisson-Germer, Uncertainty, Compton & X-Rays question from NEET 2023

Q2NEET 2023Easy

Davisson-Germer, Uncertainty, Compton & X-Rays

The minimum wavelength of $X$ -rays produced by an electron accelerated through a potential difference of $V$ volts is proportional to:

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Answer: (a)

The whole kinetic energy $eV$ goes into one photon for the shortest wavelength: $eV = \frac{hc}{\lambda_{min}}$ .
$\lambda_{min} = \frac{hc}{eV} \Rightarrow \lambda_{min} \propto \frac{1}{V}$
So the answer is (a) $\frac{1}{V}$ .

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