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JEE Main & Advanced Physics Electrostatics & Capacitance Question Bank Self Evaluation Test - Electric Chages and Fields

  • question_answer
    In the figure the electric lines on the right have twice the separation of those on the left. If a charge particle takes time t to move a distance x in left region, then it will take time to travel the same distance in the right side region is:  

    A) \[\frac{t}{2}\]

    B) \[t\]

    C) \[\sqrt{2}t\]

    D) \[2t\]

    Correct Answer: C

    Solution :

    [c] \[x=\frac{1}{2}a{{t}^{2}}=\frac{1}{2}\left( \frac{Eq}{m} \right){{t}^{2}}\text{ and }x=\frac{1}{2}\left( \frac{Eq}{2m} \right)t{{'}^{2}}\] \[\therefore t'=\sqrt{2}t.\]


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