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

revolution of earth and moon respectively about centre of mass

Since

angular velocity of earth = angular velocity of moon.

Now

angular velocity= 2π/time period

So

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

so

T1 = T2

Option 2

Answer 2

Answer:

Heya mate!!

ANSWER IS OPTION B

Explanation: