STANDARDPhysics-Work, Energy and Power
STANDARD Physics Conservative and Non-conservative Forces MCQ Question
Type: MCQ-conceptual-Medium-Class 11
Which of the following statements is incorrect?
A
No work is done if the displacement is perpendicular to the direction of the applied force.
B
If the angle between the force and displacement vectors is obtuse, then the work done is negative.
C
Frictional force is a non-conservative.
D
All the central forces are non-conservative.
Correct Answer
Option D
Detailed Explanation
All the central forces are conservative. All other statements are correct.
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