383is it multiple correct question???
I think B&D
11. A person blows into open-end of a long pipe. As a result, a high-pressure pulse of air
travels down the pipe. When this pulse reaches the other end of the pipe,
(A) a high-pressure pulse starts traveling up the pipe, if the other end of the pipe is open.
(B) a low-pressure pulse starts traveling up the pipe, if the other end of the pipe is open.
(C) a low-pressure pulse starts traveling up the pipe, if the other end of the pipe is closed.
(D) a high-pressure pulse starts traveling up the pipe, if the other end of the pipe is closed.
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3 Answers
996i think (C)and (B)
- Soumyabrata Mondal for closed pipe there is no phase change, so a compression pulse gets reflected as a compression pulse Upvote·0· Reply ·2013-04-22 09:46:04
- Soumyabrata Mondal for thats y it suld be B & D
