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How to calculate wavelength to frequency?

GeneralClass 12AllAnswered 27 Mar 2026
Answer

To convert wavelength to frequency, rearrange the wave equation to f = v/λ. For electromagnetic waves, use f = c/λ where c = 3 × 10⁸ m/s. For example, if light has a wavelength of 500 nm (500 × 10⁻⁹ m), its frequency is f = (3 × 10⁸)/(500 × 10⁻⁹) = 6 × 10¹⁴ Hz. This calculation is essential in spectroscopy, telecommunications, and understanding electromagnetic radiation properties.

General · Class 12