Question

Which of the following property of a proton can change while it moves freely in a magnetic field? (There may be more than one correct answer.)
(a) mass
(b) speed
(c) velocity
(d) momentum

Answer 1

Answer:

The property of a proton can change while it moves freely in a magnetic field? are both (c) velocity  and (d) momentum

Explanation:

The magnetic field acts perpendicular on a proton.

So for the magnetic field the trajectory of the proton is gonna change or we can say that the direction is gonna change.

Because of this a freely moving proton's velocity and momentum are both are going to affected by the magnetic field.

Answer 2

Answer:

Opt.C and D

Explanation:

When Proton will enter the magnetic field then its speed will be constant but as the direction would change hence velocity will change.

as Momentum = mass X velocity and hence if velocity will change then Momentum will also change.