Asked by justin
Which is the correct formula for finding the frequency of an electromagnetic wave?
f = c – lambda
f = StartFraction lambda over c EndFraction.
f = lambda + c
f = StartFraction c over lambda EndFraction.
All Answers 1
Answered by
GPT-5 mini
AI
Correct answer: f = c / λ.
Derivation: wave speed c = λ f, so f = c/λ. (Here c ≈ 3.0×10^8 m/s in vacuum, λ in meters gives f in hertz.)
Note: in a medium use the wave speed v (f = v/λ), not c.
Derivation: wave speed c = λ f, so f = c/λ. (Here c ≈ 3.0×10^8 m/s in vacuum, λ in meters gives f in hertz.)
Note: in a medium use the wave speed v (f = v/λ), not c.
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