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Equation for Wave Speed

Wave Speed Formula:

\[ v = f \times \lambda \]

Hz
m
m/s

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1. What is the Wave Speed Equation?

Definition: This equation calculates the speed of a wave based on its frequency and wavelength.

Purpose: It's fundamental in physics for understanding wave propagation in various media (sound, light, water waves, etc.).

2. How Does the Equation Work?

The equation is:

\[ v = f \times \lambda \]

Where:

Explanation: Wave speed equals the number of wave cycles per second multiplied by the length of each wave cycle.

3. Importance of Wave Speed Calculation

Details: Understanding wave speed is crucial in acoustics, optics, radio communications, and seismology.

4. Using the Calculator

Tips: Enter the frequency in Hertz and wavelength in meters. Both values must be positive numbers.

5. Frequently Asked Questions (FAQ)

Q1: What's a typical sound wave speed in air?
A: About 343 m/s at 20°C, but it varies with temperature and medium.

Q2: How does wave speed relate to medium properties?
A: For mechanical waves, speed depends on the medium's elasticity and density.

Q3: What's the speed of light in vacuum?
A: Approximately 299,792,458 m/s (often rounded to 3×10⁸ m/s).

Q4: Can this equation be used for all wave types?
A: Yes, it applies to all periodic waves - electromagnetic, sound, water waves, etc.

Q5: How are frequency and wavelength related?
A: They are inversely proportional when wave speed is constant (higher frequency = shorter wavelength).

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