Photoelectric Effect

Topic Objectives

By the end of this topic, the learner should be able to:

• Perform and describe simple experiments to illustrate the photoelectric effect;
• Explain the factors affecting photoelectric emission;
• Apply the equation E=hc/λ to calculate the energy photons,
• Define threshold frequency, work function and the electron volt;
• Explain photoelectric emission using Einstein equation (hf = hf₀ + ½mv²);
• Explain the applications of photoelectric effect;
• Solve numerical problems involving photoelectric emissions.