Question
Physics Question on Electricity
Given that the rest mass of electron is 0.511MeV/c 2 , the speed (in units of c) of an electron with kinetic energy 5.11MeV is closest to:
A
0.996
B
0.993
C
0.990
D
0.998
Answer
0.996
Explanation
Solution
The correct option is (A): 0.996