Additional Info

• ID Code: H3-24
• Purpose: Demonstrates open and closed tube standing resonances
• Description: Blow across the open end of the open and closed tubes. The frequency of the closed tube is approximately half that of the open tube, or about one octave lower. (Actually, due to the end correction, which applies to the open end of the closed tube but both ends of the open tube, the frequency ratio is slightly less than one octave to the trained musical ear.)

  For comparison, a half-length tube is also available. Invite students to predict how this one will compare to the open and closed tubes of twice its length

• Availability: Available
• References: REFERENCES: (PIRA 3D30.20)
• Loc codes: H3
• Videos-1: Open tube only
• Videos-2: Both tubes