question_answer

A uniform electric field \[\vec{E}\] exists between the plates of a charged condenser. A charged particle enters the space between the plates and perpendicular to \[\vec{E}\]. The path of the particle between the plates is a: [JEE ONLINE 09-04-2013]

A)             straight line

B) hyperbola

C)             parabola

D) circle

Correct Answer: C

Solution :

[c]  Hence, continuously a force exerting on the particle perpendicular for to its velocity or speed. Hence path is projectile must be parabola. As in the projectile motion.