Question 1:
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:
(c) and (d)
When a proton enters in a region of magnetic field, it experiences a magnetic
force. As a result of the force, the path of the proton becomes circular. Hence,
its velocity and momentum change.
Latest Govt Job & Exam Updates: