Question Detail
Question
Which of the following is not an example of non-conservative force?
Correct Answer
Option B is the correct answer.
Detailed Explanation
Conservative forces are those for which the work done is independent of path and depends only on initial and final positions (e.g., gravity, spring force/elastic force). Non-conservative forces include friction, tension, push-pull, air resistance, etc. So elastic force is conservative, not non-conservative.
Hint
A force is conservative if the work it does on an object moving between two points is independent of the path taken.