The species
with the double positive charge will experience the greatest deflection in a magnetic field, as the magnetic force is directly proportional to the charge of the particle. Here option D is correct.
The deflection of a charged particle in a magnetic field is determined by the magnetic force acting on it, which depends on the charge, velocity, and mass of the particle.
The formula for the magnetic force (F) on a charged particle moving through a magnetic field is given by the equation F = qvB, where q is the charge of the particle, v is its velocity, and B is the magnetic field strength.
Comparing the given species:
a.

b.

c.

d.

The charge (q) is a crucial factor in determining the magnitude of the force. Among the options, the highest charge is present in
since it has a double positive charge.
Therefore,
will experience the greatest deflection when subjected to the same magnetic field and conditions. Here option D is correct.
Complete question:
Which of the following species will be deflected to the greatest extent?
a.

b.

c.

d.

e. None of the above.