Question

The amount of work done to
increase the speed of an electron
from c/3 to 2c /3 is
KeV. (c = 3 x 10 m/s and rest
mass of electron is 0.5111 MeV)
a.56.50
b.143.58
c.168.20
d.511.00​

Answer 1

Answer:

option (B) is correct (143.678kev)