The numerical ratio of displacement to distance for a moving object is
(a) always less than 1
(b) always equal to 1
(c) always more than 1
(d) equal or less than 1
The shortest distance between initial point and final point is called displacement and total path length is called distance.
If a particle travels in a straight line without turning back, then its distance and displacement will be equal. In all other cases distance will be more than or equal to displacement.
Therefore, the ratio of displacement and distance will be equal or less than 1
Hence the correct option is D.