An electron moving with the speed 5 x 106 m/s is projected parallel to the electric field of intensity
1 x 103 N/C. Field is responsible for the retardation
of motion of electron. Find the distance travelled by
the electron before coming to rest for an instant (m.
= 9 x 10-31 kg, e = 1.6 10-19 C)
(1) 7 m
(2) 0.7 mm
(3) 7 cm
(4) 0.7 cm
1 x 103 N/C. Field is responsible for the retardation
of motion of electron. Find the distance travelled by
the electron before coming to rest for an instant (m.
= 9 x 10-31 kg, e = 1.6 10-19 C)
(1) 7 m
(2) 0.7 mm
(3) 7 cm
(4) 0.7 cm