Two planets X and Y travel counter clockwise in circular oribits about a star as shown in fig. The radii of their orbits are in the ratio 3 : 1 At one moment
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Two planets X and Y travel counter clockwise in circular oribits about a star as shown in fig. The radii of their orbits are in the ratio 3 : 1 At one moment, they are aligned as shown in the figure, (a) making a straight line with the star. During the next five years, the [...]