A point mass M is attached to one end of a masslesa rigid non-conducting rod of length L. Another equal point mass is attached to the other end of the rod. The two particles carry charges `+q` and `-q` respectively. This arrangement is held I the region of uniform electric field E such that the rod makes a small `theta` (say about `5^(@)`) with field direction. Moment of inertia of the rod is I.
Now answer the question
Time period of SHM of the given system is

A point mass M is attached to one end of a masslesa rigid non-conducting rod of length L. Another equal point mass is attached to the other end of the rod. The two particles carry charges +q and -q respectively. This arrangement is held I the region of uniform electric field E such that the rod makes a small theta (say about 5^(@) ) with field direction. Moment of inertia of the rod is I. Now answer the question The ratio (theta)/(alpha) is

A point particle of mass M is attached to one end of a massless rigid non-conducting rod of length L. Another point particle of the same mass is attached to the other end of the rod. The two particles carry charges +q and -q respectively. This arrangement is held in a region of a uniform electric field E such that the rod makes a small angle theta (say of about 5 degree) with the field direction, fig. Find an expression for the minimum time needed for the rod to become parrallel to the field after it is set free.

A point particle of mass M is attached to one end of a massless rigid non-conducting rod of length L. Another point particle of the same mass is attached to the other end of the rod. The two particles carry charges +q and -q respectively. This arrangement is held in a region of a uniform electric field E such that the rod makes a small angle theta (say of about 5 degree) with the field direction, fig. Find an expression for the minimum time needed for the rod to become parrallel to the field after it is set free.

A point particle of mass M is attached to one end of a massless rigid non-conducting rod of length L. Another point particle of the same mass is attached to the other end of the rod. The two particles carry charges +q and -q respectively. This arrangement is held in a region of a uniform electric field E such that the rod makes a small angle theta (say of about 5 degree) with the field direction, fig. Find an expression for the minimum time needed for the rod to become parrallel to the field after it is set free.

Two point masses, m each carrying charges -q and +q are attached to the ends of a massless rigid non - conducting wire of length L. When this arrangement is placed in a uniform electric field, then it deflects through an angle theta . The minimum time needed by the rod to align itself along the field is