1. What is the Frequency Equation?

The frequency equation \( f = \frac{E}{h} \) calculates the frequency of a photon from its energy, where E is the energy in joules and h is Planck's constant (6.626 × 10⁻³⁴ J·s).

2. How Does the Calculator Work?

The calculator uses the frequency equation:

Where:

• \( f \) — Frequency (Hz)
• \( E \) — Energy (J)
• \( h \) — Planck's constant = 6.626 × 10⁻³⁴ J·s

Explanation: This equation relates the energy of a photon to its frequency through Planck's constant, a fundamental constant in quantum mechanics.

3. Importance of Frequency Calculation

Details: Calculating frequency from energy is essential in quantum physics, spectroscopy, and understanding the wave-particle duality of light and matter.

4. Using the Calculator

Tips: Enter energy in joules. The value must be positive and greater than zero for valid calculation.

5. Frequently Asked Questions (FAQ)

Q1: What is Planck's constant?
A: Planck's constant (6.626 × 10⁻³⁴ J·s) is a fundamental physical constant that relates the energy of a photon to its frequency.

Q2: What are typical frequency values?
A: Frequency values can range from very low (radio waves) to extremely high (gamma rays), typically from 10³ Hz to 10²⁴ Hz.

Q3: Can this equation be used for all particles?
A: This specific equation applies to photons. For matter waves, the de Broglie equation should be used.

Q4: What units should energy be in?
A: Energy must be in joules (J) for this calculation. If you have energy in electronvolts (eV), convert to joules first (1 eV = 1.602 × 10⁻¹⁹ J).

Q5: Why is frequency important?
A: Frequency determines the color of light, the energy of photons, and is fundamental to understanding electromagnetic radiation and quantum phenomena.