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Wavelength Formula:
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The wavelength frequency formula describes the relationship between the wavelength (λ) of a wave, its frequency (f), and the speed of propagation (c). For electromagnetic waves in a vacuum, the speed of light is constant at approximately 3×10^8 m/s.
The calculator uses the wavelength formula:
Where:
Explanation: The formula shows that wavelength and frequency are inversely proportional - as frequency increases, wavelength decreases, and vice versa.
Details: Calculating wavelength is essential in various fields including telecommunications, optics, radio astronomy, and spectroscopy. It helps determine the properties of electromagnetic waves and their interactions with matter.
Tips: Enter frequency in Hertz (Hz). The value must be greater than 0. The calculator will automatically use the speed of light constant (3×10^8 m/s) for the calculation.
Q1: Does this formula work for all types of waves?
A: The formula λ = c/f works for all waves, but the speed (c) varies depending on the medium. For electromagnetic waves in vacuum, c is 3×10^8 m/s.
Q2: What if I need to calculate frequency from wavelength?
A: You can rearrange the formula: f = c/λ. Simply divide the speed of light by the wavelength to get the frequency.
Q3: What are typical wavelength values for visible light?
A: Visible light wavelengths range from approximately 380 nm (violet) to 750 nm (red), which corresponds to frequencies of about 400-790 THz.
Q4: How does medium affect the calculation?
A: In different media, the speed of light changes, which affects wavelength. Frequency remains constant when light passes between media.
Q5: Can I use this for sound waves?
A: The formula works for sound waves too, but you would need to use the speed of sound in the specific medium (approximately 343 m/s in air at 20°C) instead of the speed of light.