Published by:
CGP EDU Academic Team
Published on: August 11, 2026
A particle of mass 
and positive charge 
is projected with a speed of 
in 
-direction in the presence of electric and magnetic field and both of them are in 
-direction. Find the instant of time at which the speed of particle becomes double the initial speed .
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
A
As 
(magnitude of velocity does not change in y-z plane)
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