What is the wavelength of an electromagnetic wave with a frequency of travelling in a vacuum?
Answer and explanation
Correct answer: A. 3.0 m
- Step 1: Use the wave relationship , where .
- Step 2: Convert frequency to Hz: . Solve for wavelength: .
Answer
3.0 m.
Why not the others: '0.3 m' divides by ; '30 m' divides by ; '300 m' divides by .
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