The formula to calculate the Photoelectric Work Function (Φ) is:
\[ Φ = (h \cdot ν) - KE \]
Where:
The photoelectric work function is the minimum energy required to eject an electron from the surface of a material when it is exposed to light. This phenomenon is known as the photoelectric effect. The work function is a crucial parameter in understanding the interaction between light and matter, and it varies depending on the material. When light of a certain frequency (or higher) strikes the surface of a material, it can transfer enough energy to the electrons to overcome the work function and release them from the material. This effect is the basis for many applications, including photoelectric cells, light sensors, and solar panels.
Let's assume the following values:
Using the formula to calculate the Photoelectric Work Function (Φ):
\[ Φ = (h \cdot ν) - KE = (6.62607015 \times 10^{-34} \cdot 5 \times 10^{14}) - 2 \times 10^{-19} ≈ 3.313035075 \times 10^{-19} - 2 \times 10^{-19} ≈ 1.31 \times 10^{-19} \text{ J} \]
The Photoelectric Work Function (Φ) is approximately 1.31 × 10⁻¹⁹ J.
