A String That Is 0 $0.82 \mathrm {~m}$ Long and Open at Both Ends into Its Second Overtone

question 70

Multiple Choice

A string that is 0.15 m long and fixed at both ends is vibrating in its n = 5 harmonic.The sound from this string excites a pipe that is $0.82 \mathrm {~m}$ long and open at both ends into its second overtone resonance.What is the distance between a node and an adjacent antinode,in the string? The speed of sound in air is 345 m/s.

• A)15 mm
• B)7.5 mm
• C)23 mm
• D)30 mm
• E)150 mm

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