Physics-
General
Easy

Question

If w subscript 1 end subscript comma w subscript 2 blank a n d blank W subscript 3 end subscript end subscript represent the work done in moving a particle from A to B along three different paths 1, 2 and 3 respectively(as shown)in the gravitational field of a point mass m. Find the correct relation between w subscript 1 end subscript comma w subscript 2 end subscript a n d blank w subscript 3 end subscript

  1. w subscript 1 end subscript greater than w subscript 2 end subscript greater than w subscript 3 end subscript    
  2. w subscript 1 end subscript equals w subscript 2 end subscript equals w subscript 3 end subscript    
  3. w subscript 1 end subscript less than w subscript 2 end subscript less than w subscript 3 end subscript    
  4. w subscript 2 end subscript greater than w subscript 1 end subscript greater than w subscript 3 end subscript    

The correct answer is: w subscript 1 end subscript equals w subscript 2 end subscript equals w subscript 3 end subscript


    Gravitational field is a conservative force field. In a conservative force field work done is path independent.
    therefore blank W subscript 1 end subscript equals W subscript 2 end subscript equals W subscript 3 end subscript

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