Question
Question: Figure show a hemispherical shell having uniform mass density. The direction of gravitational field ...
Figure show a hemispherical shell having uniform mass density. The direction of gravitational field intensity at point P will be along:
A
a
B
b
C
c
D
d
Answer
C
Explanation
Solution
The gravitational field at the center of the base of a hemispherical shell points towards the curved surface. This is due to the attractive nature of gravity and the symmetry of the mass distribution. All mass elements are above the center point P. By symmetry, the horizontal components of the gravitational field cancel out. Only the vertical components add up, resulting in a net field directed upwards, towards the mass of the shell. In the figure, this direction is represented by arrow 'c'.