# What is the frequency of a electromagnetic wave with a wavelength of 1.0 X 10U5 M?

0.1 nm

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The frequency of an electromagnetic wave can be calculated using the formula:

[ \text{Frequency} = \frac{\text{Speed of light}}{\text{Wavelength}} ]

Given:

- Speed of light ( c = 3.0 \times 10^8 ) m/s
- Wavelength ( \lambda = 1.0 \times 10^{-5} ) m

Substituting the values into the formula:

[ \text{Frequency} = \frac{3.0 \times 10^8 \text{ m/s}}{1.0 \times 10^{-5} \text{ m}} ]

[ \text{Frequency} = 3.0 \times 10^{13} \text{ Hz} ]

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