AIIMS2009Physics-Gravitation
AIIMS 2009 Physics Gravitational Field MCQ Question
Type: MCQ-numerical-Medium-Class 11
A wire of length l and mass m is bent in the form of a semicircle. The gravitational field intensity at the centre of semicircle is
A
Gmπ/l along x-axis
B
Gmπ/l along y-axis
C
2πGm/l² along y-axis
D
2πGm/l² along x-axis
Correct Answer
Option C
Detailed Explanation
Consider two small elements each of length dl = r dθ symmetrically.
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