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Wave Speed Equation:
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The wave speed equation (v = fλ) calculates the speed of a wave by multiplying its frequency (f) by its wavelength (λ). This fundamental physics equation applies to all types of waves, including sound waves, light waves, and water waves.
The calculator uses the wave speed equation:
Where:
Explanation: The equation shows the direct relationship between wave speed, frequency, and wavelength. Higher frequency or longer wavelength results in greater wave speed.
Details: Calculating wave speed is essential in various fields including acoustics, optics, telecommunications, and seismology. For sound waves, it helps determine how quickly sound travels through different media.
Tips: Enter frequency in Hertz (Hz) and wavelength in meters (m). Both values must be positive numbers greater than zero for accurate calculation.
Q1: Does this equation work for all types of waves?
A: Yes, the equation v = fλ applies to all wave types, though the actual speed will vary depending on the medium through which the wave travels.
Q2: How does temperature affect sound speed?
A: Sound travels faster in warmer air because molecules move more quickly and transfer energy more efficiently. The speed increases by approximately 0.6 m/s for each degree Celsius increase.
Q3: What is the speed of sound in air at room temperature?
A: At 20°C (68°F), the speed of sound in air is approximately 343 m/s (1,125 ft/s).
Q4: How does the medium affect wave speed?
A: Waves travel at different speeds through different media. Sound travels faster in solids than liquids, and faster in liquids than gases due to differences in molecular density and bonding.
Q5: Can this calculator be used for light waves?
A: Yes, the same equation applies to light waves, though the speed of light in vacuum is constant at approximately 3×10⁸ m/s regardless of frequency or wavelength.