(A) Kinetic energy of planet (B) Gravitation Potential energy of sun-planet system (C) Total mechanical energy of planet (D) Escape energy at the surface of planet for unit mass object
List II
(I) $- \mathrm { GMm } / \mathrm { a }$ (II) $\mathrm { GMm } / 2 \mathrm { a }$ (III) $\frac { \mathrm { Gm } } { \mathrm { r } }$ (IV) $- \mathrm { GMm } / 2 \mathrm { a }$ (Where $\mathbf { a } =$ radius of planet orbit, $\mathbf { r } =$ radius of planet, $\mathrm { M } =$ mass of Sun, $\mathrm { m } =$ mass of planet) Choose the correct answer from the options given below : (1) (A)-(III), (B)-(IV), (C)-(I), (D)-(II) (2) (A)-(II), (B)-(I), (C)-(IV), (D)-(III) (3) (A)-(I), (B)-(II), (C)-(III), (D)-(IV) (4) (A)-(I), (B)-(IV), (C)-(II), (D)-(III)
Q9. Match List I with List II :
\section*{List I}
(A) Kinetic energy of planet\\
(B) Gravitation Potential energy of sun-planet system\\
(C) Total mechanical energy of planet\\
(D) Escape energy at the surface of planet for unit mass object
\section*{List II}
(I) $- \mathrm { GMm } / \mathrm { a }$\\
(II) $\mathrm { GMm } / 2 \mathrm { a }$\\
(III) $\frac { \mathrm { Gm } } { \mathrm { r } }$\\
(IV) $- \mathrm { GMm } / 2 \mathrm { a }$\\
(Where $\mathbf { a } =$ radius of planet orbit, $\mathbf { r } =$ radius of planet, $\mathrm { M } =$ mass of Sun, $\mathrm { m } =$ mass of planet) Choose the correct answer from the options given below :\\
(1) (A)-(III), (B)-(IV), (C)-(I), (D)-(II)\\
(2) (A)-(II), (B)-(I), (C)-(IV), (D)-(III)\\
(3) (A)-(I), (B)-(II), (C)-(III), (D)-(IV)\\
(4) (A)-(I), (B)-(IV), (C)-(II), (D)-(III)