Wavelength Formula:
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Wavelength (λ) is the distance between successive crests of a wave, especially points in a sound wave or electromagnetic wave. It is an important characteristic of any wave and is related to the wave's frequency and velocity.
The calculator uses the wavelength formula:
Where:
Explanation: The formula shows that wavelength is inversely proportional to frequency - higher frequencies result in shorter wavelengths when velocity is constant.
Details: Calculating wavelength is essential in various fields including acoustics, optics, radio technology, and telecommunications. It helps in designing antennas, musical instruments, and understanding wave behavior in different media.
Tips: Enter the wave velocity in meters per second (m/s) and frequency in Hertz (Hz). Both values must be positive numbers greater than zero.
Q1: What is the standard speed of sound in air?
A: The speed of sound in air at 20°C is approximately 343 m/s, but it varies with temperature and atmospheric conditions.
Q2: How does wavelength relate to pitch in sound?
A: Shorter wavelengths correspond to higher frequencies, which we perceive as higher pitches in sound.
Q3: Does wavelength change when a wave enters a different medium?
A: Yes, when a wave moves from one medium to another, its speed changes, which causes the wavelength to change while the frequency remains constant.
Q4: What is the typical wavelength range for audible sound?
A: For humans, audible sound ranges from wavelengths of about 17 meters (20 Hz) to 1.7 centimeters (20,000 Hz) in air.
Q5: How is wavelength measured for electromagnetic waves?
A: The same formula applies, where v is the speed of light (approximately 3×10⁸ m/s in vacuum).