alleryWhich harmonics are present in a pipe closed at one end?
AOnly even numbered ones
BOnly prime numbered ones
COnly whole numbered ones
DOnly odd numbered ones
Answer & Solution
Correct answer: D. Only odd numbered ones
1. A closed end must be a node and the open end an antinode.
2. That boundary condition rules out half of the series.
3. For a pipe closed at one end only the odd numbered harmonics are present.
4. So the third and fifth harmonics appear but the second does not.
_Source: syllabus Physics Part II, Ch 14 'Waves'_
Keep practising Waves
Browse all Waves questions for AP Intermediate 1st Year, or explore more Physics topics.
Related questions
Waves that need a medium to travel through are called:Type the wave numbersFinish the sentenceOne word is wrongNode or antinodeTransverse or longitudinalLiquids and solids generally have a speed of sound compared with gases that is:The beat frequency produced by two waves equals which combination of their frequencies?