If in Bohr’s model, the time period of revolution is represented as Tn,z (where n represents shell number and Z represents atomic number). Then the value of T1,2:T2,1 will be:
A
8 : 1
No worries! We‘ve got your back. Try BYJU‘S free classes today!
B
1 : 8
No worries! We‘ve got your back. Try BYJU‘S free classes today!
C
1 : 1
No worries! We‘ve got your back. Try BYJU‘S free classes today!
D
1 : 32
Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses
Open in App
Solution
The correct option is D 1 : 32 Time period of revolution in nth Bohr's orbit is given by, Tn=2πrnvn According to Bohr's model of atom, rn∝n2Z and vn∝Zn Therefore, Tn∝(n2Z)(Zn) or Tn∝n3Z2 Applying it for the given question, we get T1,2:T2,1=(1322)2312=1:32