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JEE Advanced 2020 Paper 1

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Question : 10

Total: 54

A uniform electric field,

NC−1 is applied in a region. A charged particle of mass mcarrying positive charge q is projected in this region with an initial speed of 2√10×106ms−1. This particle is aimed to hit a target T, which is 5m away from its entry point into the field as shownschematically in the figure. Take

=1010Ckg−1. Then

[JEE Adv 2020 P1]

The particle will hit T if projected at an angle 45° from the horizontal
The particle will hit T if projected either at an angle 30° or 60° from the horizontal
Time taken by the particle to hit T could be √
5
6
µs as well as √
5
2
µs
Time taken by the particle to hit T is √
5
3
µs

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