Column II shows five systems in which two objects are labelled as X and Y. Also in each case a point P is shown. Column I gives some statements about X and/or Y. Match these statements to the appropriate system(s) from Column II: Column I Column II (A) The force exerted by X on Y has a magnitude Mg. (P) Block Y of mass M left on a fixedinclined plane X, slides on it with aconstant velocity. (B) The gravitational potential energy of X is continuously increasing. (Q) Two rings magnets Y and Z, each of mass M, are kept in frictionless vertical plastic stand so that they repel each other. Y rests on the base X and Z hangs in air in equilibrium. P is the topmost point of the stand on the common axis of the two rings. The whole system is in a lift that is going up with a constant velocity. (C) Mechanical energy of the system X + Y is continuously decreasing. (R) A pulley Y of mass m_0 is fixed to a table through a clamp X. A block of mass M hangs from a string that goes over the pulley and is fixed at point P of the table. The whole system is kept in a lift that is going down with a constant velocity. (D) The torque of the weight of Y about point is zero. (S) A sphere Y of mass M is put in a nonviscous liquid X kept in a container at rest. The sphere is released and it moves down in the liquid. (T) A sphere Y of mass M is falling with its terminal velocity in a viscous liquid X kept in a container. [JEE Adv 2009 P1]

Correct Answer is : (A)→(T), (P); (B)→(Q), (S), (T); (C)→(P), (R), (T); (D)→(Q)

(A)→(Q), (P); (B)→(Q), (S), (T); (C)→(P), (R), (T); (D)→(Q)

(A)→(T), (P); (B)→(Q), (S), (T); (C)→(S), (R), (T); (D)→(S)

(A)→(T), (P); (B)→(Q), (S), (T); (C)→(P), (R), (T); (D)→(Q)

(A)→(R), (P); (B)→(Q), (S), (T); (C)→(P), (S), (T); (D)→(P)

IIT JEE Advanced 2009 Paper 1

Section: Physics

Question : 19 of 60

Marks: +1, -0

Column II shows five systems in which two objects are labelled as X and Y. Also in each case a point P is shown. Column I gives some statements about X and/or Y. Match these statements to the appropriate system(s) from Column II:

Column I	Column II
(A) The force exerted by X on Y has a magnitude Mg.	(P) Block Y of mass M left on a fixedinclined plane X, slides on it with aconstant velocity.
(B) The gravitational potential energy of X is continuously increasing.	(Q) Two rings magnets Y and Z, each of mass M, are kept in frictionless vertical plastic stand so that they repel each other. Y rests on the base X and Z hangs in air in equilibrium. P is the topmost point of the stand on the common axis of the two rings. The whole system is in a lift that is going up with a constant velocity.
(C) Mechanical energy of the system X + Y is continuously decreasing.	(R) A pulley Y of mass m0 is fixed to a table through a clamp X. A block of mass M hangs from a string that goes over the pulley and is fixed at point P of the table. The whole system is kept in a lift that is going down with a constant velocity.
(D) The torque of the weight of Y about point is zero.	(S) A sphere Y of mass M is put in a nonviscous liquid X kept in a container at rest. The sphere is released and it moves down in the liquid.
	(T) A sphere Y of mass M is falling with its terminal velocity in a viscous liquid X kept in a container.

[JEE Adv 2009 P1]

(A)→(Q), (P); (B)→(Q), (S), (T); (C)→(P), (R), (T); (D)→(Q)
(A)→(T), (P); (B)→(Q), (S), (T); (C)→(S), (R), (T); (D)→(S)
(A)→(T), (P); (B)→(Q), (S), (T); (C)→(P), (R), (T); (D)→(Q)
(A)→(R), (P); (B)→(Q), (S), (T); (C)→(P), (S), (T); (D)→(P)

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