Standing Waves
100

An open-open tube with a length of L=4.5 m has a 5th harmonic standing wave in it. What is its wavelength? 

What is 1.8 m? 

200

True or False: Sound waves are transverse waves?

What is False? 
300

Your vocal tract is 0.15 m long and produces a standing wave in the 3rd harmonic.What is the wavelength of this harmonic? 

What is 0.2 m? 

400

The 4th harmonic of a standing wave on a string with tied ends is 956 Hz. What is the frequency of the 3rd harmonic? 

What is 717 Hz? 

500

If the length of an open-closed tube is .86 m, then the wavelength of the 3rd and 5th harmonic of its standing wave are ? 

What are 1.15 and 0.68 meters?