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.
Found an issue with this question?
Related Questions
More from Gravitation
More from 2009
Assertion : Electric potential of earth is taken zero. Reason : No electric field exists on earth surface.
ElectrostaticsPhysics
Assertion : Heat of neutralisation of nitric acid with NaOH is same to that of HCl and NaOH. Reason : In both cases strong acid and strong bases are n...
Physical ChemistryChemistry
Assertion : A reaction which is spontaneous and accompanied by decrease of randomness must be exothermic. Reason : All exothermic reactions are accomp...
Physical ChemistryChemistry