From your Physics textbook or from the Internet, you can learn that for an elastic string, velocity of the transverse wave is


    v = ,


where  "T"  is tension of the string (in Newtons, N)  and  "d" is the linear density of the string (in kilograms per meter, kg/m).


In this formula, the velocity "v" of the transverse wave is in meters per second, m/s.


By substituting the given input values, you get


    193 = .


Square both sides and express  T =   to get the value of  T  equal to  85.67 Newtons.


Answer.  The tension of the string is  85.67 Newtons.