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It is necessary to do the work
A A force is acted on the object 
B Object is displaced 
C A force is acted on object it is not displaced 
D All of the above
  • a)
    (a) and (b) are correct
  • b)
    (b) and (c) are correct
  • c)
    (a), (b) and (c) are correct
  • d)
    All of these
Correct answer is option 'A'. Can you explain this answer?
Most Upvoted Answer
It is necessary to do the workA A force is acted on the objectB Object...

The correct answer is option A: (a) and (b) are correct.

Explanation:

To determine the correct option, let's analyze each statement:


  • A: It is necessary to do the work


    • This statement implies that work needs to be done.


  • B: A force is acted on the object and the object is displaced


    • This statement implies that when a force is applied to an object and the object undergoes displacement, work is done.

    • Work is defined as the product of force and displacement in the direction of the force.

    • Therefore, when a force is applied to an object and it undergoes displacement, work is done on the object.


  • C: A force is acted on an object, but it is not displaced


    • This statement implies that a force is applied to an object but the object does not undergo any displacement.

    • In this case, no work is done on the object because there is no displacement in the direction of the force.



Based on the analysis, it can be concluded that statement A and B are correct, while statement C is incorrect. Therefore, the correct option is A: (a) and (b) are correct.
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