JEE Main 2026 — Gravitation Question with Solution
JEE Main 2026 (22 January Shift 1)
Question
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 .
Choose an option
Show full solutionCorrect option: D
Correct answer
D2
Step-by-step explanation
Let where .
Net field at center has components along and .
Config 1 (original):
,
.
.
Config 2 (3M and 4M swapped):
,
.
.
.
Net field at center has components along and .
Config 1 (original):
,
.
.
Config 2 (3M and 4M swapped):
,
.
.
.
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This is a previous-year question from JEE Main 2026, covering the Gravitation chapter of Physics. PrepSharp catalogues every PYQ from JEE Main with a verified answer key and step-by-step solution prepared by IIT alumni — so you can search by chapter, topic or year and revise efficiently.