Question

In a pipe open at both ends distance between node and antinodes is:

• A. $\lambda /4$
• B. $\lambda /2$
• C. $3\lambda /4$
• D. none of the above

Answer 1

The correct option is A $\lambda /4$

In a standing wave , the distance between two successive nodes or antinodes is $\lambda /2$ , as standing waves are produced in an organ pipe and between two successive nodes , we have an antinode or between two successive antinodes , a node is present .

Therefore distance between a node and antinode will be $\lambda /4$ .