Question 873733
The wave can be described by a sine function of the form y = Asin(Bx)
The period of oscillation is {{{2*pi/B = 510}}} 
So {{{B = 2*pi/510 = pi/255}}}
Ans: B
{{{graph(300,300,-20,1000,-1,1,y=sin(pi/255*x))}}}