A wave hits an object as shown.Which kind of wave interaction is shown?

What is occurring when a light wave goes through a pane of glass in a window?
Amir observes Wave 1 and Wave 2 crashing into each other at two different intervals. His experiments produce Wave 3 and Wave 4. Amir records his data in a table.

Which best describes what is occurring when a door is almost closed and rays of light fan out from the small opening?
A wave hits an object as shown.Which kind of wave interaction is shown?

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