In an atom two electrons move around the nucleus in circular orbit of radii R and 4R. The ratio of time taken by them to complete one revolution is
(a)1:8 (b)4:1 (c)1:4 (d)8:7
Kindly refer to the following link:
https://www.meritnation.com/ask-answer/question/in-an-atom-two-electrons-moves-around-the-nucleus-in-circu/nuclei/1715167
https://www.meritnation.com/ask-answer/question/in-an-atom-two-electrons-moves-around-the-nucleus-in-circu/nuclei/1715167