Conservative and Non-conservative Forces
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PHXI06:WORK ENERGY AND POWER

355403 Negative of work done by the conservative forces on a system is equal to :

1 The change in kinetic energy of the system
2 The change in potential energy of the system
3 The change in total mechanical energy of the system
4 None of these
PHXI06:WORK ENERGY AND POWER

355404 Work done by a conservative force

1 Never depends on path
2 May depend on path
3 Is not related to potential energy
4 None of these
PHXI06:WORK ENERGY AND POWER

355405 If \(W_{1}, W_{2}\) and \(W_{3}\) represent the work done in moving a particle from \(A\) to \(B\) along three different paths 1,2 and 3 respectively in the gravitational field of a point mass \(m\). Find the correct relation between \(W_{1}, W_{2}\) and \(W_{3}\).
supporting img

1 \(W_{1}=W_{2}=W_{3}\)
2 \({W_1} < {W_2} < {W_3}\)
3 \(W_{1}>W_{2}>W_{3}\)
4 \(W_{1} < W_{2}>W_{3}\)
PHXI06:WORK ENERGY AND POWER

355406 Statement A :
In the absence of nonconservative forces total mechanical energy is conserved.
Statement B :
Total energy of an isolated system remains constant.

1 Statement A is correct but Statement B is incorrect.
2 Statement A is incorrect but Statement B is correct.
3 Both statements are correct.
4 Both Statements are incorrect.
PHXI06:WORK ENERGY AND POWER

355407 Assertion :
In case of conservative forces, the work done during a round trip is always zero.
Reason :
No force is required to move a body in its round trip in any situation.

1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but reason is correct.
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PHXI06:WORK ENERGY AND POWER

355403 Negative of work done by the conservative forces on a system is equal to :

1 The change in kinetic energy of the system
2 The change in potential energy of the system
3 The change in total mechanical energy of the system
4 None of these
PHXI06:WORK ENERGY AND POWER

355404 Work done by a conservative force

1 Never depends on path
2 May depend on path
3 Is not related to potential energy
4 None of these
PHXI06:WORK ENERGY AND POWER

355405 If \(W_{1}, W_{2}\) and \(W_{3}\) represent the work done in moving a particle from \(A\) to \(B\) along three different paths 1,2 and 3 respectively in the gravitational field of a point mass \(m\). Find the correct relation between \(W_{1}, W_{2}\) and \(W_{3}\).
supporting img

1 \(W_{1}=W_{2}=W_{3}\)
2 \({W_1} < {W_2} < {W_3}\)
3 \(W_{1}>W_{2}>W_{3}\)
4 \(W_{1} < W_{2}>W_{3}\)
PHXI06:WORK ENERGY AND POWER

355406 Statement A :
In the absence of nonconservative forces total mechanical energy is conserved.
Statement B :
Total energy of an isolated system remains constant.

1 Statement A is correct but Statement B is incorrect.
2 Statement A is incorrect but Statement B is correct.
3 Both statements are correct.
4 Both Statements are incorrect.
PHXI06:WORK ENERGY AND POWER

355407 Assertion :
In case of conservative forces, the work done during a round trip is always zero.
Reason :
No force is required to move a body in its round trip in any situation.

1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but reason is correct.
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PHXI06:WORK ENERGY AND POWER

355403 Negative of work done by the conservative forces on a system is equal to :

1 The change in kinetic energy of the system
2 The change in potential energy of the system
3 The change in total mechanical energy of the system
4 None of these
PHXI06:WORK ENERGY AND POWER

355404 Work done by a conservative force

1 Never depends on path
2 May depend on path
3 Is not related to potential energy
4 None of these
PHXI06:WORK ENERGY AND POWER

355405 If \(W_{1}, W_{2}\) and \(W_{3}\) represent the work done in moving a particle from \(A\) to \(B\) along three different paths 1,2 and 3 respectively in the gravitational field of a point mass \(m\). Find the correct relation between \(W_{1}, W_{2}\) and \(W_{3}\).
supporting img

1 \(W_{1}=W_{2}=W_{3}\)
2 \({W_1} < {W_2} < {W_3}\)
3 \(W_{1}>W_{2}>W_{3}\)
4 \(W_{1} < W_{2}>W_{3}\)
PHXI06:WORK ENERGY AND POWER

355406 Statement A :
In the absence of nonconservative forces total mechanical energy is conserved.
Statement B :
Total energy of an isolated system remains constant.

1 Statement A is correct but Statement B is incorrect.
2 Statement A is incorrect but Statement B is correct.
3 Both statements are correct.
4 Both Statements are incorrect.
PHXI06:WORK ENERGY AND POWER

355407 Assertion :
In case of conservative forces, the work done during a round trip is always zero.
Reason :
No force is required to move a body in its round trip in any situation.

1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but reason is correct.
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PHXI06:WORK ENERGY AND POWER

355403 Negative of work done by the conservative forces on a system is equal to :

1 The change in kinetic energy of the system
2 The change in potential energy of the system
3 The change in total mechanical energy of the system
4 None of these
PHXI06:WORK ENERGY AND POWER

355404 Work done by a conservative force

1 Never depends on path
2 May depend on path
3 Is not related to potential energy
4 None of these
PHXI06:WORK ENERGY AND POWER

355405 If \(W_{1}, W_{2}\) and \(W_{3}\) represent the work done in moving a particle from \(A\) to \(B\) along three different paths 1,2 and 3 respectively in the gravitational field of a point mass \(m\). Find the correct relation between \(W_{1}, W_{2}\) and \(W_{3}\).
supporting img

1 \(W_{1}=W_{2}=W_{3}\)
2 \({W_1} < {W_2} < {W_3}\)
3 \(W_{1}>W_{2}>W_{3}\)
4 \(W_{1} < W_{2}>W_{3}\)
PHXI06:WORK ENERGY AND POWER

355406 Statement A :
In the absence of nonconservative forces total mechanical energy is conserved.
Statement B :
Total energy of an isolated system remains constant.

1 Statement A is correct but Statement B is incorrect.
2 Statement A is incorrect but Statement B is correct.
3 Both statements are correct.
4 Both Statements are incorrect.
PHXI06:WORK ENERGY AND POWER

355407 Assertion :
In case of conservative forces, the work done during a round trip is always zero.
Reason :
No force is required to move a body in its round trip in any situation.

1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but reason is correct.
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PHXI06:WORK ENERGY AND POWER

355403 Negative of work done by the conservative forces on a system is equal to :

1 The change in kinetic energy of the system
2 The change in potential energy of the system
3 The change in total mechanical energy of the system
4 None of these
PHXI06:WORK ENERGY AND POWER

355404 Work done by a conservative force

1 Never depends on path
2 May depend on path
3 Is not related to potential energy
4 None of these
PHXI06:WORK ENERGY AND POWER

355405 If \(W_{1}, W_{2}\) and \(W_{3}\) represent the work done in moving a particle from \(A\) to \(B\) along three different paths 1,2 and 3 respectively in the gravitational field of a point mass \(m\). Find the correct relation between \(W_{1}, W_{2}\) and \(W_{3}\).
supporting img

1 \(W_{1}=W_{2}=W_{3}\)
2 \({W_1} < {W_2} < {W_3}\)
3 \(W_{1}>W_{2}>W_{3}\)
4 \(W_{1} < W_{2}>W_{3}\)
PHXI06:WORK ENERGY AND POWER

355406 Statement A :
In the absence of nonconservative forces total mechanical energy is conserved.
Statement B :
Total energy of an isolated system remains constant.

1 Statement A is correct but Statement B is incorrect.
2 Statement A is incorrect but Statement B is correct.
3 Both statements are correct.
4 Both Statements are incorrect.
PHXI06:WORK ENERGY AND POWER

355407 Assertion :
In case of conservative forces, the work done during a round trip is always zero.
Reason :
No force is required to move a body in its round trip in any situation.

1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but reason is correct.