1. What is Planck's Equation?

Planck's equation describes the relationship between the energy of a photon and its frequency. It is a fundamental equation in quantum mechanics that shows energy is quantized and proportional to frequency.

2. How Does the Calculator Work?

The calculator uses Planck's equation:

Where:

• \( E \) — Energy of the photon (Joules)
• \( h \) — Planck's constant (6.626 × 10⁻³⁴ J·s)
• \( f \) — Frequency of the photon (Hertz)

Explanation: The equation demonstrates that the energy of a photon is directly proportional to its frequency, with Planck's constant as the proportionality factor.

3. Importance of Energy Calculation

Details: Calculating photon energy is crucial for understanding quantum phenomena, spectroscopy, photoelectric effect, and various applications in physics and chemistry research.

4. Using the Calculator

Tips: Enter frequency in Hertz (Hz). 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 range from radio waves (kHz-MHz) to visible light (10¹⁴-10¹⁵ Hz) to gamma rays (10¹⁹+ Hz).

Q3: Can this calculate energy for multiple photons?
A: This calculates energy for a single photon. For multiple photons, multiply the result by the number of photons.

Q4: What units are used for energy?
A: Energy is calculated in Joules (J), though electronvolts (eV) are also commonly used in quantum physics.

Q5: How accurate is this calculation?
A: The calculation is mathematically exact based on the input frequency and Planck's constant value.