Consider standing waves in an air column with one end closed. What is a pressure node?(a) Pressure variation is maximum(b) Displacement variation is minimum(c) Same as displacement node(d) Least pressure changeThe question was asked by my college director while I was bunking the class.My doubt is from Reflection of Waves topic in chapter Waves of Physics – Class 11

Consider standing waves in an air column with one end closed. What is

1.	Consider standing waves in an air column with one end closed. What is a pressure node?(a) Pressure variation is maximum(b) Displacement variation is minimum(c) Same as displacement node(d) Least pressure changeThe question was asked by my college director while I was bunking the class.My doubt is from Reflection of Waves topic in chapter Waves of Physics – Class 11
Answer» Right choice is (d) Least pressure change For explanation: The point where there is an antinode corresponds to maximum amplitude of displacement. This ALSO implies that here, pressure changes are MINIMUM and it is THEREFORE called a pressure node.

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