Question

In organ pipe reflection does not take place exactly at open end due to :

• A. finite momentum of air molecules
• B. finite weight of air molecules
• C. finite elasticity of air molecules
• D. finite elasticity of graph pipe

Answer 1

Answer: (A)

finite momentum of air molecules

Due to finite momentum of air molecules in organ pipe reflection takes place not exactly at open end but some what above it. Hence antinode is not formed exactly at the open end rater it is formed at a little distance away from open end outside it.

Hence option A is correct