| "No one has ever been able to define the difference between interference and diffraction satisfactorily. It is just a question of usage, and there is no specific, important physical difference between them. The best we can do, roughly speaking, is to say that when there are only a few sources, say two, interfering, then the result is usually called interference, but if there is a large number of them, it seems that the word diffraction is more often used." (Feynman lecture 30) |
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| In this activity, you will perform virtual experiments with public domain physics simulations dealing with Waves. Before you start answering the questions, play with the simulation. Get familiar with each of the different effects and buttons of the animations. Utilize the tabs | 在這個單元，你要處理基本電子在一個物理學領域的模擬實驗，在你開始作答問題前，玩玩看每個模擬實驗，熟悉每個模擬實驗的操作，並利用這些模擬來回答問題。 |