Why is the sound produced at one end of a metallic pipe heard twice at the other end ?

Why is it not possible to charge just one end of a metal rod ?

Why is the sound produced by an organ pipe open at both ends is better than that of an organ pipe closed at one end ?

At the closed end of an organ pipe :

If you clap on one end of a long steel pipe you will hear two distinct sounds on the other end of the pipe. Explain.

Organ pipes are musical instruments which are used for producing musical sound by blowing air into the pipe. Organ pipes are of two types: closed organ pipes are closed at one end and open at the other. Open organ pipes are open at both ends. The study shows that the overall musical sound produced by an open organ piipe is richer than the musical sound produced by a closed organ pipe. Read the above passage and answer the following questions: (i) Why the overall musical sound produced by an open organ pipe is richer than the musical sound produced by a closed organ pipe ? (ii) What does this study imply in day to day life ?

A source of sound is placed at one end of an iron bar 2 km long. Two sounds are heard at the other end at an interval of 5.6s. If the velocity of sound in air is 330m//s , find the velocity of sound in iron.

At one end of a steel bar of 1 kilometre length, a source of sound is placed and two sounds are heard at the other end at an interval of 2.74 seconds. Calculate the velocity of sound in steel if velocity of sound in air is 340 ms^(-1) .

Assertion: An open organ pipe of certain length has the same fundamental frequency as closed organ pipe of half the length. Reason : In case of an open organ organ pipe, at both the ends antinodes are formed while in case of closed organ pipe, at one end antinode and at the other end node is formed.

If an observer places his ear at the end of a long pipe, he can hear two distinct echoes when the pipe is hammered at the other end. Explain.