A particle of mass
9×10−31kg having a negative charge of
1.6×10−19C is projected horizontally with a velocity of
106ms−1 into a region between two infinite horizontal parallel plates of metal. The distance between the plates is
d=03cm, and the particle enters 0.1 cm below the top plate. The top and bottom plates are connected, respectively, to the positive and negative terminals of a 30 V battery. Find the components of the velocity of the particle just before it hits one of the plates