MCQ
$X-$ rays are produced due to
- ABreak up of molecules
- ✓Changing in atomic energy level
- CChanging in nuclear energy level
- DRadioactive disintegration
$\lambda=\frac{h c }{\Delta E }$
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$(A)$ $E_A^{\text {lnside }}=0$
$(B)$ $Q_A > Q_B$
$(C)$ $\frac{\sigma_A}{\sigma_B}=\frac{R_B}{R_A}$
$(D)$ $E_A^{\text {on sulface }} < E_B^{\text {on uurface }}$
