A small point mass carrying some positive charge on, it is redirected from the edge of the table. There is a uniform electric field in this region in the horizontal direction. Which of the following options then correctly describe the trajectory of the mass ? (where we have drawn schematically and are not to scale)
Option: 1
Option: 2
Option: 3
Option: 4  

Answers (1)

\\ y=\frac{1}{2}gt^2=k_1t^2\\ x=\frac{1}{2} \frac{qE}{m}t^2=k_2t^2\\ y=\frac{k_1}{k_2}x=kx\\ where \ k_1 \ and \ k_2 \ and \ k \ are \ some \ constant

So we get a linear equation in y and x.

So most appropriate graph will be

 

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