Question

define the term displacement how is it measured why is the displacement of the body is said to be zero complete one full revolution​

Answer 1

It is given in your text book why don’t peep in it. You will get more information there as compared to here. I hope u understand mate. It’s for your benefit I am saying.

Answer 2

Answer:

if a body that moves from one point to another point in the straight line then the difference between the two point is known as displacement. a displacement transducer and DT is used to measure it.

because if we start from one point and again come at that point that means it's displacement is zero.