Three blocks I, II, & III having mass of...

Three blocks `I, II`, & `III` having mass of `1.6 kg`, `1.6 kg` and `3.2 kg` repectively are connected as shown in the figure. The linear mass density of the wire `AB, CD` and `DE` are `10 g//m, 8 g//m` and `10 g//m` respectively. The speed of a transverse wave pulse produced in `AB, CD` and `DE` are : `(g = 10m//sec^(2))`

`80 m//s, 20sqrt(10) m//s, 40 m//s`

`20 sqrt(10) m//s, 40 m//s, 80 m//s`

`20 sqrt(10) m//s` in all

`80 m//s` in all

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