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Two bodies are moving in concentric orbits of radii 2 cm and 4 cm such that their time periods are the same. The ratio of their centripetal accelerations is:
Explanation
As time periods are same and so $a_{1}/a_{2} = \omega^{2}r_{1}/\omega^{2}r_{2} = r_{1}/r_{2} = 2/4 = 1/2$