In bohr's model of hydrogen atom the ratio between the periods of revolution of an electron inthe orbit n=1 to the periods of revolution of an electron inthe orbit n=2 is Share with your friends Share 8 Geetha answered this From the above revoultion per sec depends on the nth orbit value only. R1R2 = n23n13 = 2313 = 8 : 1(as all other values are constant) 24 View Full Answer