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diketahui:
A = 5 cm
t = 1 s
n = 2,5 λ
ditanyakan: T? f? A?
jawab:
(a)
T=t/n
T=1/2,5 = 0,4 s
(b)
f = 1/T
f = 1/0,4 = 2,5 Hz
(c)
A=5 cm
5b. diketahui:
n = 3λ
t = 1 s
ditanyakan: f?
jawab:
f = n/t
f = 3/1 = 3 Hz