1. What is Light Frequency?

Light frequency refers to the number of wave cycles that pass a given point per second. It determines the color of visible light and is inversely proportional to wavelength.

2. How Does the Calculator Work?

The calculator uses the light frequency equation:

Where:

• \( f \) — Frequency in Hertz (Hz)
• \( c \) — Speed of light (default 3×10⁸ m/s)
• \( \lambda \) — Wavelength in meters

Explanation: The equation shows that as wavelength increases, frequency decreases proportionally.

3. Importance of Frequency Calculation

Details: Calculating light frequency is essential in optics, telecommunications, spectroscopy, and understanding electromagnetic wave behavior.

4. Using the Calculator

Tips: Enter wavelength in meters and speed of light in m/s (default is 300,000,000 m/s). Both values must be positive numbers.

5. Frequently Asked Questions (FAQ)

Q1: What is the relationship between frequency and wavelength?
A: They are inversely proportional - as one increases, the other decreases.

Q2: What are typical frequency ranges for visible light?
A: Approximately 430-750 THz (4.3×10¹⁴-7.5×10¹⁴ Hz).

Q3: Does light frequency change in different media?
A: No, frequency remains constant while wavelength changes when light enters different materials.

Q4: How is frequency related to energy?
A: Energy is directly proportional to frequency (E = hf, where h is Planck's constant).

Q5: Why is the speed of light important in this calculation?
A: It's the fundamental constant that relates wavelength and frequency for all electromagnetic waves.