If the wavelength of light is 400 nm in a substance where the speed of light is 2.35 $\times$ 10⁸ m/s,what is the wavelength of this light in air? A) 313 nm B) 400 nm C) 511 nm D) 635 nm E) 940 nm

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Quizplus · Accepted Answer

The speed of light in air is approximately 3.00 * 10^8 m/s. Using the formula for wavelength in different media, λ_air = λ_substance * (v_air / v_substance), we get λ_air = 400 nm * (3.00 * 10^8 m/s / 2.35 * 10^8 m/s) = 511 nm.

If the Wavelength of Light Is 400 Nm in a Substance