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Match List-I with List-II. List-I List-II (A) Kinetic energy of planet (I) a GMm – (B) Gravitation Potential energy of Sun-planet system. (II) a 2 GMm (C) Total mechanical energy of planet (III) r Gm (D) Escape energy at the surface of planet for unit mass object (IV) – a 2 GMm (Where a = radius of planet orbit, r = radius of planet, M = mass of Sun, m = mass of planet) Choose the correct answer from the options given below:

1. (A) – II, (B) – I, (C) – IV, (D) – III
2. (A) – III, (B) – IV, (C) – I, (D) – II
3. (A) – I, (B) – IV, (C) – II, (D) – III
4. (A) – I, (B) – II, (C) – III, (D) – IV

Correct answer: (A) – II, (B) – I, (C) – IV, (D) – III

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