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Q.

A body is lifted from the ground to a certain height along two paths as shown in the figure. Then

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a

Equal work is done along the paths A & B

b

More work is done along the path B

c

Less work is done along the path B

d

None of these

answer is C.

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Detailed Solution

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When a body is lifted from the ground to a certain height along two paths

as described in figure.

Equal amount of work will be performed because gravitational force is

conservative force.

We know work done by the conservative force depends only on initial and

final position of the path and it is independent of the path followed

So option (c) is correctly evaluating the task.

Remaining options a, b, d are not giving suitable conclusions.

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