What is Oscillatory motion?

What do you mean by oscillatory motion?

Assertion: The motion of the earth around the sun is perriodic but not oscillatory. Reason: Oscillatory motion is necessarily periodic but periodic motion is not necessarily oscillatory.

When is the motion of an object categorised as oscillatory motion?

Is circular motion an exampleos oscillatory motion ? Hint : Think - is there to and fro motion about some mean position which is the basic concept for oscillatory motion ?

Is circular motion an exampleos oscillatory motion ? Hint : Think - is there to and fro motion about some mean position which is the basic concept for oscillatory motion ?

Which one of the following is an oscillatory motion.