Question 164: Dual Nature of Matter and Radiation

Question

An electron having de-Broglie wavelength $$\lambda$$ is incident on a target in a X-ray tube. Cut-off wavelength of emitted X-ray is :

Accepted Answer

$$\lambda  = {h \over {mv}}$$
kinetic energy, $${{{P^2}} \over {2m}} = {{{h^2}} \over {2m{\lambda ^2}}} = {{hc} \over {{\lambda _c}}}$$
$${\lambda _c} = {{2mc{\lambda ^2}} \over h}$$

Answer

0

Answer

$${{2{m^2}{c^2}{\lambda ^2}} \over {{h^2}}}$$

Answer

$${{2mc{\lambda ^2}} \over h}$$

Answer

$${{hc} \over {mc}}$$

Dual Nature of Matter and Radiation

An electron having de-Broglie wavelength $\lambda$ is incident on a target in a X-ray tube. Cut-off wavelength of emitted X-ray is :

Choose the correct answer: