Chapter 12
1. (p.377 prob.35) (a) At T = 15°C, how long must a closed organ pipe be if it is to have a fundamental frequency of 294Hz? (b) If this pipe were filled with helium, what would its fundamental frequency be?
2. (p.377 prob.38) A pipe in air at 20°C is to be designed to produce two successive harmonics at 24oHz and 280Hz. How long must the pipe be, and is it open or closed?