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AIIMS2019Physics-Work, Energy and Power

AIIMS 2019 Physics Conservative Forces MCQ Question

Type: MCQ-conceptual-Medium-Class 11

If one mole of an ideal gas goes through the process A→B\text{A} \rightarrow \text{B} and B→C\text{B} \rightarrow \text{C}. Given that TA=400 K\text{T}_\text{A} = 400\text{ K}, and TC=400 K\text{T}_\text{C} = 400\text{ K}. If PAPB=15\frac{\text{P}_\text{A}}{\text{P}_\text{B}} = \frac{1}{5}, then find the heat supplied to the gas:

Question diagram
A

2059.2 J

B

3659.2 J

C

2225.2 J

D

2659.2 J

Correct Answer

Option D

Detailed Explanation

In a conservative force field, the work done by the force is path-independent and depends only on the initial and final positions of the particle. Since the particle moves from point A to point C, the work done can be calculated using the potential energy difference between these two points, which yields a value of 4 units. Options A, B, and C are incorrect as they do not account for the total energy change associated with the particle's displacement in a conservative field, which is solely determined by the endpoints rather than the specific path taken.

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