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JEE Advanced Model Paper 11 with solutions for online practice
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© examsnet.com
Question : 2
Total: 60
A charged particle is projected with initial velocity
−
V
= (
2
^
i
+
3
^
j
+
5
^
k
) m/s in a uniform magnetic field
−
B
= (
^
j
+
^
k
) T . The maximum value of x – component of it’s velocity in the subsequent motion is
√
N
m/s. What is the value of N?
Your Answer:
Validate
Solution:
Speed is constant and dot product of velocity and
−
B
is also constant
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