Question

The frequency of the 15.ocm string is how many times higher than the frequency of the 30.0cm string

Answer 1

2 times.

Step-by-step explanation:

We know that f = V / λ ................. (1)

λ(a)=15 cm

λ(b)=30 cm

Va=Vb

Now by using the above formula;

f_{a} = Va/15 = Va= 15*f_{a}

f_{b} = Vb/30 = Vb = 30*f_{b}

As, Va = Vb

15*f_{a} = 30*f_{b}

f_{a} / f_{b} = 30/15

= 2 times