For next week you need to peruse the chapter(s) or section on wave interference. We are particularly interested in understanding the interference between just two sources of waves at this point. The concepts I expect you to have some familiarity before we discuss them in class are the following.
Why is superposition critical to understanding interference?
What waves or parts of waves are interfering?
What do we mean by constructive or destructive interference?
Is there interference that isn't constructive or destructive?
What does path difference have to do with interference?
What does phase differece have to do with interference?
What is a small angle and how do you approximate the trig functions of a small angle?
What is the small angle description of two source interference?
Are there any waves that don't interfere?
