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Threshold frequency
f₀ = φ/h
Where: f₀ = Threshold frequency, h = height (m) / Planck constant, φ = work function (J) / phase (rad)
Solved example
Given: h = 7, phi = 5
Find: f_0 (Threshold frequency)
- Formula: f₀ = φ/h
- Substitute the values: f₀ = 5/7
- Result: f₀ = 0.714286
Answer: f_0 = 0.714286
Calculator
How to calculate Threshold frequency
- Write down the formula: f₀ = φ/h.
- Note the known values (h, φ).
- Substitute them and simplify to find f_0.
- Use the calculator above to solve for any letter.
Frequently asked questions
What is the formula for Threshold frequency?
The formula is f₀ = φ/h, where f₀ = Threshold frequency, h = height (m) / Planck constant, φ = work function (J) / phase (rad).
What is Threshold frequency when h = 7, phi = 5?
f_0 = 0.714286. Substitute the values into f₀ = φ/h and simplify.