A particle of specific charge mq=πCkg−1 is projected from the origin toward positive x−axis with a velocity of 10ms−1 in a uniform magnetic field B=−2k^T. The velocity v of particle after time t=121s will be (in ms−1)
A
5[i^+3j^]
B
5[3i^+j^]
C
5[3i^−j^]
D
5[i^+j^]
Medium
Open in App
Solution
Verified by Toppr
Correct option is B)
Time period T=qB2πm=mqB2π=π×22π=1s
Since the particle will be at point P after time t=121=12Ts , it is deviated by an angle θ=122π=300