1 Answers

Option 1 : Only 2

CONCEPT:

  • Circular motion: The motion in which a particle moves on a circular path is called circular motion.
  • Periodic motion: The motion which repeats in an equal interval of time is called periodic motion.
    • For example: Earth revolving around the sun, A swing in motion, bouncing ball, etc.
  • Oscillatory motion: The to and fro motion of a body about its mean position is called oscillatory motion.
    • For example: Simple pendulum, musical instruments, etc.

EXPLANATION:

  • Statement 2 is correct as circular motions repeat themselves after definite intervals of time (periodic) but they do not occur to and fro about a mean position and therefore, are not oscillatory.
  • Statement 1 is incorrect as all oscillatory motions do repeat after definite intervals of time and therefore, are periodic but all periodic motions do not occur to and fro about a mean position and therefore are not oscillatory.
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