हिन्दी में पढ़ेंHome › Formulas › Modern physics › Photon energy
Photon energy
E = hf = hc/λ
Where: E = energy (J) / electric field (N/C), f = frequency (Hz) / focal length (m), h = height (m) / Planck constant
Solved example
Given: f = 7, h = 5
Find: E (energy (J) / electric field (N/C))
- Formula: E = f·h
- Substitute the values: E = 5·7
- Result: E = 35
Answer: E = 35
Calculator
How to calculate Photon energy
- Write down the formula: E = hf = hc/λ.
- Note the known values (f, h).
- Substitute them and simplify to find E.
- Use the calculator above to solve for any letter.
Frequently asked questions
What is the formula for Photon energy?
The formula is E = hf = hc/λ, where E = energy (J) / electric field (N/C), f = frequency (Hz) / focal length (m), h = height (m) / Planck constant.
What is Photon energy when f = 7, h = 5?
E = 35. Substitute the values into E = hf = hc/λ and simplify.