Question

It is observed that an electromagnetic radiation has energy of 2 eV.
Which of the following regions of the electromagnetic spectrum does the given wave belong to?

Answer 1

$$\begin{gathered} Dearstudent, \\ E=2eV=2\times 1.6\times {10}^{-19}J \\ E=3.2\times {10}^{-19}J \\ Frequency=\frac{E}{h}=\frac{3.2\times {10}^{-19}}{6.63\times {10}^{-34}}=0.48\times {10}^{15}Hz \\ Sothespectrumisvisiblespectrum. \\ Regards \end{gathered}$$