Multiple Choice
A 500-eV electron and a 300-eV electron trapped in a uniform magnetic field move in circular paths in a plane perpendicular to the magnetic field. What is the ratio of the radii of their orbits?
A) 2.8
B) 1.7
C) 1.3
D) 4.0
E) 1.0
Correct Answer:

Verified
Correct Answer:
Verified
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