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Which of the following is an example of random motion?

easy Q13 of 15
General Science - Physics (Basics)
Which of the following is an example of random motion?
AA ceiling fan rotating
BA pendulum swinging
CDust particles moving in air
DA train moving on straight tracks
Step-by-Step Solution
  1. Step 1: Understand random motion

    Random motion is motion without a definite path or direction.
  2. Step 2: Analyze the options

    Dust particles move irregularly due to continuous collisions with air molecules.
  3. Final Answer:

    Dust particles moving in air → Option C
  4. Quick Check:

    No fixed path = random motion ✅
Quick Trick: Erratic, unpredictable motion = random motion.
Common Mistakes:
MISTAKES
  • Confusing circular or oscillatory motion with random motion.
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