A vertical pipe at both ends is partially submerged in water. A tuning fork of unknown frequency is placed near the top of the pipe and made to vibrate. The pipe can be moved up and down and thus length of air column in the pipe, standing waves will be setup as a result of directions. Smallest value of length of air column, for which sound intensity is maximum, is 10 cm. [take speed of sound, v = 344 m/s] The air column here is closed at one end because the surface of water acts as a wall. Which of the following is correct ?

A vertical pipe at both ends is partially submerged in water. A tuning

1.	A vertical pipe at both ends is partially submerged in water. A tuning fork of unknown frequency is placed near the top of the pipe and made to vibrate. The pipe can be moved up and down and thus length of air column in the pipe, standing waves will be setup as a result of directions. Smallest value of length of air column, for which sound intensity is maximum, is 10 cm. [take speed of sound, v = 344 m/s] The air column here is closed at one end because the surface of water acts as a wall. Which of the following is correct ?
Answer» At the closed END of the AIR column, there is a DISPLACEMENT NODE and also a pressure node At the closed end of the air column, there is a displacement node and a pressure antinode At the closed end of the air column, there is a displacement antinode and a pressure node At the closed end of the air column, there is a displacement antinode and also a pressure antinode Answer :B

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