In this chapter, we will be learning about quantum physics. We will start by understanding the background of the quantum theory and what quantum energy means.
Next, we will explore the effects of photoelectric and learn about four features that cannot be explained using wave theory.
Finally, we will study Einstein's photoelectric theory and understand the minimum work function needed for a metal to emit electrons.
We will also learn about threshold frequency and work function. By the end of this chapter, we will have a solid understanding of these concepts in quantum physics.
• Explain the background of the idea of quantum theory
• State the meaning of quantum energy
• Explain the nature of the wave-particle distortion
• Explain the concept of photons
• Solve problems for (i) photon energy, E = hf (ii) power, P = nhf; n is the number of photons emitted per second
• Describe the effect of photoelectric
• Identify four features of photoelectric effects that cannot be described using wave theory
• State the minimum work function required by a metal to emit electrons through Einstein's equation
• Describes threshold frequency, fo and work function, W
• Determine the metal working function based on the formula, W = hf
• Solve problems involving Einstein's equation for photoelectric effects
• Describes the production of photoelectric current in a photo cell circuit
• Describe the application of photoelectric effect
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