An electron is made to enters symmetrically between two parallel and equally but oppositely charged metal plates, each of 10 cm length. The electron emerges out of the field region with a horizontal component of velocity 106 m/s. If the magnitude of the electric between the plates is 9.1 V/cm, then the vertical component of velocity of electron is
(mass of electron = 9.1 × 10–31 kg and charge of electron = 1.6 × 10–19 C)
1
1 × 106 m/s
2
0
3
16 × 106 m/s
4
16 × 104 m/s