Consider a stretched string supporting a transverse standing wave. Examine the following statements:
1. Energy is periodically converted between kinetic and potential forms within each loop but does not travel along the string.
2. All particles between two consecutive nodes have the same amplitude.
3. The phase difference between any two particles separated by a distance of 4λ is 2π.
Which of the above statements are correct?
a) 1 only
b) 1 and 3 only
c) 1 and 2 only
d) 1,2 and 3