Year: 2019
Topic: Moving charges and magnetism
Time :
1.
Ionized hydrogen atoms and α-particles with same momenta enters perpendicular to a constant magnetic field, B. The ratio of their radii of their paths r
H
: r
α
wil be
(1). 1 : 4
(2). 2 : 1
(3). 1 : 2
(4). 4 : 1