1. What is Electromagnetic Frequency?

Frequency (f) is the number of wave cycles that pass a fixed point in one second, measured in Hertz (Hz). In electromagnetic waves, it's inversely proportional to wavelength through the speed of light.

2. How Does the Calculator Work?

The calculator uses the fundamental wave equation:

Where:

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

Explanation: This equation shows that as wavelength increases, frequency decreases proportionally, since the speed of light is constant.

3. Importance of Frequency Calculation

Details: Calculating frequency is essential in telecommunications, radio astronomy, spectroscopy, and understanding electromagnetic spectrum properties.

4. Using the Calculator

Tips: Enter wavelength in meters (e.g., 500 nm = 5e-7 m). The value must be greater than zero. The calculator will output frequency in Hertz.

5. Frequently Asked Questions (FAQ)

Q1: What's the relationship between frequency and energy?
A: Higher frequency electromagnetic waves have higher energy (E = hf, where h is Planck's constant).

Q2: What are typical frequency ranges?
A: Radio waves: 3 kHz-300 GHz, Visible light: 400-790 THz, X-rays: 30 PHz-30 EHz.

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

Q4: How precise is this calculation?
A: Extremely precise, as the speed of light is a defined constant (299,792,458 m/s exactly).

Q5: Can I calculate wavelength from frequency?
A: Yes, simply rearrange the equation: λ = c/f.