1. What is Planck's Constant?

Planck's constant (h) is a fundamental physical constant that relates the energy of a photon to its frequency. It has a value of approximately 6.626 × 10⁻³⁴ joule-seconds and is essential in quantum mechanics.

2. How Does the Calculator Work?

The calculator uses Planck's equation:

Where:

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

Explanation: The equation calculates the energy of a photon based on its frequency using Planck's constant.

3. Importance of Planck's Constant

Details: Planck's constant is fundamental to quantum mechanics and is used in various calculations involving electromagnetic radiation, atomic structure, and quantum phenomena.

4. Using the Calculator

Tips: Enter the frequency in hertz (Hz). The value must be valid (frequency > 0).

5. Frequently Asked Questions (FAQ)

Q1: What is the value of Planck's constant?
A: Planck's constant is approximately 6.626 × 10⁻³⁴ joule-seconds.

Q2: How is Planck's constant used in water calculations?
A: While primarily used in quantum mechanics, it can be applied to calculate the energy of photons in water-related spectroscopic studies.

Q3: What units are used for Planck's constant?
A: Planck's constant is typically expressed in joule-seconds (J·s).

Q4: Can Planck's constant change?
A: No, Planck's constant is a fundamental physical constant and does not change.

Q5: Why is Planck's constant important?
A: It is essential for understanding quantum phenomena and is used in various scientific and technological applications.