Solved: PHYSICS Question for NEET

NEET PHYSICSEasy

A gravitational field is present in a region, and a mass is shifted from $A$ to $B$ through different paths as shown. If $W_1$ , $W_2$ and $W_3$ represent the work done by the gravitational force along their respective paths, then:

$W_1 = W_2 = W_3$

$W_1 > W_2 > W_3$

$W_1 > W_3 > W_2$

$W_1 < W_2 < W_3$

Step-by-Step Solution

Identify the Nature of Force: Gravitational force is a conservative force [Class 11 Physics, Ch 6, Sec 6.8].
Apply Property of Conservative Forces: The work done by a conservative force depends only on the initial and final positions of the object and is independent of the path taken to go from one point to another.
Conclusion: Since the initial point ( $A$ ) and final point ( $B$ ) are the same for all three paths, the work done by gravity is identical for all paths. $W_1 = W_2 = W_3$

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