There are uniform electric and magnetic fields in a region ...

CBSE Class 12 Physics 2020 Outside Delhi Set 3 Paper

Question : 2 of 13

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There are uniform electric and magnetic fields in a region pointing along X-axis. An α-particle is projected along Y-axis with a velocity v. The shape of the trajectory will be:

circular in XZ plane
circular in YZ plane
helical with its axis parallel to X-axis
helical with its axis parallel to Y-axis

Solution:

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