Answer: well the answer is a
Explanation: how because I did that
The wavelength of an electromagnetic wave that has a frequency of 1.82 x 10¹⁸ Hz in a vacuum is 1.65 × m.
<h3>How to calculate wavelength?</h3>
The wavelength of a wave can be calculated by dividing the speed of the wave by its frequency.
According to this question, a wave has a frequency of 1.82 x 10¹⁸ Hz in a vacuum and speed of light in a vacuum is 3.00 × 10⁸ m/s.
λ =
Wavelength (λ) = 3 × 10⁸ ÷ 1.82 × 10¹⁸
Wavelength (λ) = 1.65 × m
Therefore, the wavelength of an electromagnetic wave that has a frequency of 1.82 x 10¹⁸ Hz in a vacuum is 1.65 × m.
Learn more about wavelength here:
brainly.com/question/13533093
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