A point charge +Q is place just outside an imaginary hemispherical surface of radius R as shown in the figure. Which of the following statements is/are correct ?

Locate the position of the centre of mass of a hemisphere of radius R as shown in the following figure:

A charge Q is placed at the centre of an imaginary hemispherical surface. Using symmetry arguments and the Gauss's law, find the flux of the electric field due to this charge through the surface of the hemisphere (figure ).

q_(1),q_(2),q_(3) and q_(4) are point charges located at point as shown in the figure and s is a spherical Gaussian surface of radius R . Which of the following is true according to the Gauss's law

q_(1), q_(2), q_(3) and q_(4) are point charges located at points as shown in thte figure and S is a spherical Gaussian surface of radius R. Which of the following is true according to the Gauss.s law

q_(1),q_(2),q_(3) and q_(4) are point charges located at point as shown in the figure and s is a spherical Gaussian surface of radius R . Which of the following is true according to the Gauss's law

A charge +Q is uniformly distributed along the circular arc of radius R as shown in the figure.The magnitude of the force experienced by the point charge +q place at the centre of curvature is (k=(1)/(4piepsilon_(0)))

A charge q is situated at the centre of an imaginary hemispherical surface, as shown in figure. Using gauss's theorem and symmetry considerations, determine the electric flux due to this charge through the hemisphere surface.

A small body of mass m slides down from the top of a frictionless hemispherical surface of radius r as shown in the figure.The vertical height h below the highest point at which the body gets separated from the hemispherical surface. .