Question:medium
When a long hollow steel pipe is struck with a hammer at one end, two sounds are heard at the other end. If the time interval between the two sounds heard is 0.53 s, then the length of the pipe is
(Speed of sound in steel is 5100 $ms^{-1}$ and speed of sound in air is 330 $ms^{-1}$)
When a long hollow steel pipe is struck with a hammer at one end, two sounds are heard at the other end. If the time interval between the two sounds heard is 0.53 s, then the length of the pipe is
(Speed of sound in steel is 5100 $ms^{-1}$ and speed of sound in air is 330 $ms^{-1}$)
(Speed of sound in steel is 5100 $ms^{-1}$ and speed of sound in air is 330 $ms^{-1}$)
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Speed of sound order: Solids>Liquids>Gases.
Always subtract the smaller time ($L/v_{fast}$) from the larger time ($L/v_{slow}$).
Updated On: Mar 31, 2026
- 153 m
- 174 m
- 187 m
- 270 m
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The Correct Option is C
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