Answer:
The answer is
[tex] \huge 4.054 \times {10}^{ - 5} \: m \\ [/tex]
Explanation:
The wavelength of the electromagnetic
radiation can be found by using the formula
[tex] \lambda = \frac{c}{f} \\ [/tex]
f is the frequency
c is the speed of light
From the question we have
[tex] \lambda = \frac{3.0 \times {10}^{8} }{7.4 \times {10}^{12} } \\ [/tex]
We have the final answer as
[tex]4.054 \times {10}^{ - 5} \: m[/tex]
Hope this helps you