Math Problem Statement
Suppose that for an interferometer to work properly, the electromagnetic waves must arrive in sync to 1% of the period of the wave. What time difference is this for the radio wave of wavelength 42 cm? What time difference is this for a 600-nm visible wavelength wave? (Recall that the period of the wave is the inverse of its frequency v.)
The time difference for the 42-cm wavelength is × 10−11s.
The time difference for the 600-nm wavelength is × 10−17s.
Solution
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Math Problem Analysis
Mathematical Concepts
Electromagnetic Waves
Frequency
Period
Formulas
Frequency: v = c / λ
Period: T = 1 / v
Time difference: Δt = 0.01 * T
Theorems
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Suitable Grade Level
Advanced High School or College
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