Question

Consider perfectly smooth glass plates shaped and oriented in the following ways (note that the plate spacings and fringe separations are greatly exaggerated). For each case, consider the interference pattern you would observe if the plates were illuminated from above with a sodium lamp. The top row is an example.

Answer 1

The correct answer is  interference

Explanation: The superposition, also called interference in some cases, is the phenomenon that occurs when two or more waves meet, generating a resulting wave equal to the algebraic sum of the disturbances of each wave.