Solved UPSC CDS/OTA Question
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Q · Work, Energy and PowerMedium · 45s
Which force does not change the mechanical energy of a system?
TopicWork, Energy and Power
Question Typemultiple choice
DifficultyMedium
Marking+1 / −0.33
Test Duration30 min
Step-by-Step Solution
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Tension is conservative in ideal cases like pendulums.
Final Answer: Option B - Tension in a string