Q.
In a cylindrical region uniform magnetic field is present as shown in the figure. The cylinder is kept on a horizontal plane and its axis is horizontal. If a charge particle of mass m and charge q is projected horizontally with velocity v through a hole normal to the axis of the cylinder as shownin the diagram. An observer states the particle moves first undeviated and subsequently
see full answer
Talk to JEE/NEET 2025 Toppers - Learn What Actually Works!
Real Strategies. Real People. Real Success Stories - Just 1 call away
An Intiative by Sri Chaitanya
a
oscillates inside cylinder along a horizontal diameter passing through axis of the cylinder with time period 4RqBmg
b
oscillates inside cylinder along a horizontal diameter passing through axis of the cylinder with time period 2qRBmg
c
oscillates inside cylinder along a horizontal diameter passing through axis of the cylinder with time period mgqBR
d
It is not possible for the particle to oscillate in this given situation.
answer is D.
(Unlock A.I Detailed Solution for FREE)
Ready to Test Your Skills?
Check your Performance Today with our Free Mock Test used by Toppers!
Take Free Test
Detailed Solution
Consider the 2D view of the situation. Before any collision with the walls of cylinder, the particle will move in horizontal plane if qvB = mg.But after 1st collision, qvB and mg start acting in same direction along vertical and the particle is not able to move in horizontal plane.
Watch 3-min video & get full concept clarity