THERE ARE TWO MAIN DIFFERENCES B/W PERIODIC AND OSCILLATORY MOTION-
- Oscillation happens in a single direction (or in a plane) while periodic motion is generally described in 2D or 3D coordinates.So oscillation is the projection of 2D periodic motion on a single coordinate axis
- An oscillation can be periodic or not.Example of non periodic motion is damped motion ,i.e, in which internal energy deceases over time,until oscillation stops,this oscillatory motion turns into non periodic motion.So only undamped motion is periodic.
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