Answer to Question #192963 in Mechanics | Relativity for April

Question #192963

A standing wave is set up in a string 120 cm long. The string vibrates in four segments under 

a frequency of 120 Hz. Calculate the wavelength and the fundamental frequency of the string


1
Expert's answer
2021-05-16T17:53:30-0400

L=120 cm=1.2 mL =120\ cm =1.2 \ m

n = 4 \

λ=2nL=241.2=0.6\lambda= \frac{2}{n}*L= \frac{2}{4}*1.2=0.6

f=120f = 120

f=fnn;fn=fn=1204=3f= f_n*n;f_n= \frac{f}{n}= \frac{120}{4}=3

Answer : λ=0.6 m;f4=30 Hz\text {Answer : }\lambda = 0.6\ m ; f_4= 30\ Hz



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