Question

In the earth-moon system if T1 and T2 are period of revolution of Earth and moon respectively about the centre of mass of the system the :-
1. T1>T2
2. T1=T2
3. T1<T2
4. insufficient data​

Answer 1

T1 = T2

Given

System is centre of mass

Now

angular velocity of earth= angular velocity of moon

we know that

angular velocity= 2π/time period

So

2π/time period of Earth= 2π/time period of moon

time period of Earth= time period of moon

t1 = t2

option 2

Answer 2

Answer:

Here is your answer ll

2 option

Hope it helps you