lecture22_th4_8

# lecture22_th4_8 - Which harmonic is shown in this snapshot...

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Which harmonic is shown in this snapshot of the “wave on a string” simulation? A. n=1 (the fundamental) B. n=2 (the second harmonic) C. n=4 (the fourth harmonic) D. n=6 (the 6 th harmonic) E. n=8 (the 8 th harmonic)

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A string has length L=50 cm and the wave speed on the string is v=440 m/s . What is the frequency of the fundamental standing wave of the string? A. f = 880 Hz B. f = 440 Hz C. f = 220 Hz D. f = 110 Hz L
A string vibrates in the fundamental, producing the note A (440 Hz). Suppose the speed of sound in the air could be suddenly doubled ( but the string is left unchanged) What would you HEAR? A) Same pitch (440 Hz) B) Lower pitch C) Higher pitch, but not double D) Double pitch = one octave higher E) ??

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Phys 1240: Sound and Music Reminder: help reduce distractions during lecture Please Turn off cell phones Put away laptops Put away newspapers or other reading Stop side conversations Don’t leave in last 5 minutes of class
www.colorado.edu/physics/phys1240 LAST TIME: Standing waves on a string. TODAY:

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lecture22_th4_8 - Which harmonic is shown in this snapshot...

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