A mass m is placed at point P lies on the axis of a ring of mass M and radius R at a distance R from its centre. The gravitational force on mass m is.
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
C
The situations is as shown in the figure.
Gravitational force on an object of mass m at point p distance d from centre O lying on the axis of the
circular ring of radius R and mass M is given by
When d = r, then
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