Slide 1
Kuliah Mg-7Fisika GelombangSuperposition, Standing Wave& Sound WaveDosen: Dr.rer.nat. Ir. Aulia M T NasutionSuperposition of Wave
Standing Wave
Minimum values of amplitude:
Maximum values of amplitude:
nodesantinodes
/2/2/4
Standing Wave in String
Wavelength of the normal modes:Frequency of the normal modes:Contoh Soal 1:
f2 = 2 f1 = 2 x 262 Hz = 524 Hz f3 = 3 f1 = 3 x 262 Hz = 786 Hz
Contoh Soal 2:
Ball in air vibrates in its 2nd harmonicsBall in water vibrates in its 5th harmonicsRadius of the sphere = ????Contoh Soal 3:
Distance from neck = 64 60.3 cm = 3.7 cm
Distance from neck = 64 57.1 cm = 6.9 cmDistance from first fret = 6.9 3.7 cm = 3.2 cmStanding Waves in Air Columns
Contoh Soal - 4:
Beat (temporal interference)
using trigonometric identity:
Maximum amplitudes are happened when:
Sound Level in decibels (dB)
reference intensity
Psychological Sound Maps
Doppler Effect
Terima KasihPertanyaan ???
