Chemistry - Atomic Structure Question with Solution | TestHub

$\begin{array}{ccccc}\lambda \text{ in }{\text{A}}^0& =& \frac{\text{12408}}{\text{1000}}& =& \text{12.4}{\text{ A}}^0\\ \left(\text{X-ray}\right)& & & & \end{array}$

Voltage$= \text{1000 V}$$$

Wattage$=\text{1000}\times \text{1.5}\times {\text{10}}^{-5}=\text{1.5}\times {\text{10}}^{-2}\text{ W}$

$=\text{1.5}\times {\text{10}}^{-2}\text{ J}/\text{sec}$

Energy of one photon

$=\text{1000}\times \text{1.6}\times 10^{-19}\text{J}=\text{1.6}\times {\text{10}}^{-16}\text{ J}$

No. of photons/sec$=\frac{\text{1.5}\times {\text{10}}^{-2}}{\text{1.6}\times {\text{10}}^{-16}}=\text{0.9375}\times {\text{10}}^{\text{14}}$

$=9\text{.}375\times 10^{13}\text{ photons}$