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2 cards from this section. Quick, good the night before a test.
What is the principle of superposition?
Think about what happens when two waves meet.
Define constructive interference.
Consider what happens when two crests align.
What is superposition in wave theory?
Think about how waves interact rather than disappear.
True or False: Destructive interference occurs when waves are in phase.
Consider the alignment of crests and troughs.
Two waves traveling in the same medium are described by the functions y1(x,t) = 3sin(2πx - 4πt) and y2(x,t) = 3sin(2πx - 4πt + π). What is the resultant wave function?
Think about how to combine these two wave functions, especially considering their phase.
If the amplitude of two waves in phase is 5 units each, what is the amplitude of the resultant wave?
What happens when you add together identical waves that align perfectly?
4 more questions in this section. Enroll free to practise them all.
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