Three point masses each of mass 
are kept at the corners of an equilateral triangle of side 
. The system rotates about the center of the triangle without any change in the separation of masses during rotation. The period of rotation is directly proportional to 
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
B
: The two force acting on any of the particle is gravitational attraction from the rest of the two and the centripetal force due to rotation. As the system is rotating about centre of the triangle,
So, 
or 
or 
so, the period of rotation, 
or 
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