I want to study about the phenomenon of reflection of pressure waves as in an open ended organ pipe. Please suggest a suitable resource? I know about the harmonics in a stretched string and I can use the analogue to find the nodes and the antinodes formed when a pressure wave passes through an open organ pipe or a closed organ pipe. However, I read the following question in a book:
A high pressure pulse was sent into a open organ pipe. What will be the nature of the reflected pulse? (high pressure or low pressure?)
And I was stumped, as I could not see physically how reflection should occur.
But I already know this analogue and this is what I primarily use for problem solving, but, I do not know how to solve uniquely for a pressure wave, i.e. without comparing it to a wave in a string.