Published by:
CGP EDU Academic Team
Published on: September 12, 2026
Net gravitational force at the center of a square is found to be 
when four particles having mass 
and 
are placed at the four corners of the square as shown in figure and it is 
when the positions of 
and 
are interchanged. The ratio 
is 
. The value of 
is 
.
A
B
3
C
1
D
2
Text Solution
Verified by ExpertsThe correct answer is:
D
Let 
where 
.
Net field at center has components along 
and 
.
Config 1 (original):
,
.
.
Config 2 (3 M and 4 M swapped):
,
.
.
.
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