In the above problem , the wavelength of electromagnetic wave is

Explanation

To find the wavelength of the electromagnetic wave, we can use the relationship between the speed of light (C), frequency (f), and wavelength (λ). The formula we will use is:

\[ C = \lambda \cdot f \]

Where:
- \( C \) is the speed of light in a vacuum, approximately \( 3 \times 10^8 \) m/s.
- \( f \) is the frequency of the electromagnetic wave.
- \( \lambda \) is the wavelength of the electromagnetic wave.
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