Jawabanmu

2013-12-08T16:20:49+07:00
P. gelombang = v : f = 3/2 : 5/6 = 9/2
2013-12-08T16:21:39+07:00
Lamda = v/f
= 3/2 x 6/5
= 18/10 = 1,8 m