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IIT JEE 2009 Physics Paper2 Code 1 Solutions

11.    Column II gives certain systems undergoing a process. Column I suggests changes in some of the parameters related to the system. Match the statements in Column I to the appropriate process(es) from Column II.

Column I

Column II

(A)

The energy of the system is increased

(p)

System:

 

Process:

A capacitor, initially uncharged

It is connected to a battery

 

(B)

Mechanical energy is provided to the system, which is converted into energy of random motion of its parts

(q)

System:

 

Process:

A gas in an adiabatic container fitted with an adiabatic piston

The gas is compressed by pushing the piston

 

(C)

Internal energy of the system is converted in to its mechanical energy

(r)

System:

Process:

A gas in a rigid container

The gas gets cooled due to colder atmosphere surrounding it

 

(D)

Mass of the system is decrease

(s)

System:

Process:

A heavy nucleus, initially at rest

The nucleus fissions into two fragments of nearly equal masses and some neutrons are emitted

 

(t)

System:

Process:

A resistive wire loop

The loop is placed in a time varying magnetic field perpendicular to its plane

 

Sol.   (A -> p, q, t); (B -> q); (C -> s); (D -> s)

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