Two planets A and B travel counter clockwise is circular orbits around a fixed star. The radii
Channel: Doubtnut
Date: 2020-04-05

Two planets A and B travel counter clockwise is circular orbits around a fixed star. The radii of their orbits are in the ratio `1 : 4`. At some time, they are aligned as shown in the figure, making a straight line with the star. After a certain time, planet A comes back to its initial positio completing one full circle about the star in the same time, angular displacement of the planet B is :