JEE Main & Advanced
Physics
Photo Electric Effect, X- Rays & Matter Waves
Question Bank
Cathode Rays and Positive Rays
question_answer
Cathode rays enter into a uniform magnetic field perpendicular to the direction of the field. In the magnetic field their path will be [MP PMT/PET 1998]
A) Straight line
B) Circle
C) Parabolic
D) Ellipse
Correct Answer:
B
Solution :
Charged particles trace a circular path in a perpendicular magnetic field.