That force acts between two straws held apart, showing it works even when bodies are:
ANot moving
BNot visible
CNot touching
DNot charged
Answer & Solution
Correct answer: C. Not touching
1. The two straws never meet in the activity.
2. One still swings towards or away from the other.
3. So the force works when they are not touching.
_Source: syllabus Science Class VIII, Chapter 8, Force and Pressure._
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