Question

What is to and fro movement​

Answer 1

Answer:in one direction and then in the opposite direction, a number of times: She was gazing out the window, rocking rhythmically to and fro. Backwards, sideways and back and forth. anticlockwise. back and forth idiom.        

The phrase 'to and fro' is typically used on its own: that is, not specified further by other indications of place. For example: There was an old bear at the zoo who always had something to do. For an hour or so he would walk to and fro and then he would walk fro and to

Explanation:

a continuous or regular movement backward and forward; an alternating movement, flux, flow, etc.: the to-and-fro of the surf.