A.
B.
C.
D.

A.
B.
C.
D.

A.
B.
C.
D.

A.
B.
C.
D.

A.
B.
C.
D.

A.\(1200J;60m\)
B.\(1200J;40m\)
C.\(1000J;40m\)
D.\(1000J;60m\)

A.\(a)\,400K;\,\,\,b)\,130,75K\)
B.\(a)\,673K;\,\,\,b)\,130,75K\)
C.\(a)\,400K;\,\,\,b)\,403,75K\)
D.\(a)\,673K;\,\,\,b)\,403,75K\)

A.\(a < c < b\)
B.\(a < b < c\)
C.\(b < a < c\)
D.\(b > a > c\)

A.\(a < 0,\,\,b > 0\)  
B.\(a > 0,\,\,b < 0\)  
C.\(a > 0,\,\,b > 0\)  
D.\(a < 0,\,\,b < 0\)

A.\(4\pi {a^2}\)  
B.\(3\pi {a^2}\)  
C.\(2\pi {a^2}\)  
D.\(\pi {a^2}\)