Which of the following properties of a proton can change while it moves freely in a mangetic field? (There may be more than one correct answer).

Options

A. Mass
B. Speed
C. Velocity
D. Momentum

Answer

A, C, D

Explanation

When a proton enters a magnetic field, it starts moving on a circular path. Because of its movemet along a circular path it attains angular momentum . We know that momentum is a product of mass and velocity. Therefore velocity and mass of proton change when it enters a magnetic field.