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Wavelength Formula:
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The wavelength of an electromagnetic wave is calculated using the formula λ = c / f, where λ is the wavelength, c is the speed of light in a vacuum (approximately 3×10^8 m/s), and f is the frequency of the wave. This fundamental relationship applies to all electromagnetic waves, from radio waves to gamma rays.
The calculator uses the wavelength formula:
Where:
Explanation: The formula shows that wavelength is inversely proportional to frequency - higher frequency waves have shorter wavelengths, and vice versa.
Details: Calculating wavelength is essential in many fields including telecommunications, astronomy, medical imaging, and spectroscopy. It helps determine the properties and behavior of electromagnetic waves in different media.
Tips: Enter frequency in Hertz (Hz) and the speed of light in meters per second (m/s). The default speed of light value is set to 300,000,000 m/s (3×10^8 m/s). All values must be positive numbers.
Q1: Why is the speed of light constant in the formula?
A: In a vacuum, the speed of light is constant at approximately 3×10^8 m/s, which serves as the fundamental constant for all electromagnetic wave calculations.
Q2: How does wavelength relate to the electromagnetic spectrum?
A: Different regions of the electromagnetic spectrum are characterized by their wavelength ranges, from long radio waves (kilometers) to short gamma rays (picometers).
Q3: Does wavelength change in different media?
A: While frequency remains constant, wavelength changes when electromagnetic waves pass through different media due to changes in the speed of light.
Q4: What are typical wavelength values for visible light?
A: Visible light wavelengths range from approximately 380 nanometers (violet) to 750 nanometers (red).
Q5: How is wavelength measured experimentally?
A: Wavelength can be measured using various techniques including interference patterns, diffraction gratings, or spectroscopy equipment.