Last updated: March 2, 2026 by Sarah Chen

Wavelength, Frequency, and Wave Speed

Formula

Wavelength (λ) is the distance between consecutive wave crests. It relates to frequency (f) and wave speed (v) by λ = v/f. For sound at 343 m/s, a 440 Hz tone (concert A) has a wavelength of about 0.78 m. For light at 3×10⁸ m/s, visible wavelengths range from 380-700 nm.

Common use cases:

  • Antenna design and RF engineering
  • Musical acoustics analysis
  • Optical system design

Frequently Asked Questions

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Sarah Chen

Financial Analyst, CFA

Sarah is a Chartered Financial Analyst with over 8 years of experience in investment management and financial modeling. She specializes in retirement planning and compound interest calculations.

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