If an as observer places his ear at the end of a long steel pipe, he can hear two distinct sounds, when a workman hammers the other end of the pipe. Why?

If an as observer places his ear at the end of a long steel pipe, he c

1.	If an as observer places his ear at the end of a long steel pipe, he can hear two distinct sounds, when a workman hammers the other end of the pipe. Why?
Answer» Solution :Sound is transmitted both in air and in a steel TUBE. VELOCITY of propagation of sound in air is of the order of 340 m/s, where as the velocity of the sound in steel is of the order of 4990m/s.

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If an as observer places his ear at the end of a long steel pipe, he can hear two distinct sounds, when a workman hammers the other end of the pipe. Why?

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