Question

# The energy of one quantum of $12-\mathrm{GHz}$ microwave radiation is (a) $8.0 \times 10^{-22} \mathrm{~J} ;$ (b) $4.0 \times 10^{-23} \mathrm{~J}$; (c) $4.0 \times 10^{-24} \mathrm{~J}$; (d) $8.0 \times 10^{-24} \mathrm{~J}$.

Solution

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Step 1
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$\textbf{Given:}$

$f = 12 \text{ GHz}$

Here we will calculate the energy of one quantum of micro-wave radiation using Planck s energy quantum formula.