A particle of mass \(m\) is tied to a string of length \(l\) and whirled into a horizontal plane. If the tension in the string is \(T,\) then the speed of the particle will be: 
1. \(\sqrt{\dfrac{T l}{m}} \) 

 2. \(\sqrt{\dfrac{2 T l}{m}} \)

3. \(\sqrt{\dfrac{3 T l}{m}}\)

4. \(\sqrt{\dfrac{T}{m l}}\)