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Chapter 18 Physical Optics
In this chapter you will learn how to model light.
 Learning Outcomes
 
After successful completion of this chapter, you will be able to:
- Define the wave model for light. 
- Apply the small angle approximation. 
- Define constructive and destructive interference. 
- Explain how diffration is produced. 
- List different optical phenomenon and explain the fundamental concepts behind them. 
- Define the quantum model for light.