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- A-C = 20cm
- AB/BC=10cm
jadi, 1 gelombang = 0,4s krn A-C = 0,2s
jawab :
f = 1/T
=1/0,4
=2,5
amplitudo =10 cm
f = 1/T
f = 1/ 1/5
f = 5
amplitudonya:
A-B dan B-C