A planet of mass

PHYSICS · Single correct · A Level · Physics · Fields and their consequences · Fields and their consequences

Problem

A planet of mass MM, has two natural satellites with masses m1m_1 and m2m_2. The radii of their circular orbits are R1R_1 and R2R_2 respectively. Ignore the gravitational force between the satellites. Define v1v_1, L1L_1, K1K_1 and T1T_1 to be, respectively, the orbital speed, angular momentum, kinetic energy and time period of revolution of satellite 1; and v2v_2, L2L_2, K2K_2, and T2T_2 to be the corresponding quantities of satellite 2. Given m1/m2=2m_1/m_2 = 2 and R1/R2=1/4R_1/R_2 = 1/4, match the ratios in List-I to the numbers in List-II. [Adv. 2018] LIST-I LIST-II
P. v1/v2v_1/v_21. 1/81/8
Q. L1/L2L_1/L_22. 1
R. K1/K2K_1/K_23. 2
S. T1/T2T_1/T_24. 8
(1) P →\to 4; Q →\to 2; R →\to 1; S →\to 3 (2) P →\to 3; Q →\to 2; R →\to 4; S →\to 1 (3) P →\to 2; Q →\to 3; R →\to 1; S →\to 4 (4) P →\to 2; Q →\to 3; R →\to 4; S →\to 1

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