

MCQOPTIONS
Saved Bookmarks
1. |
Find the velocity of an electron when its kinetic energy is equal to one electron volt (in 105m/s).Given charge of an electron e = 1.6 x 10-19 and mass of an electron m = 9.1 x 10-31. |
A. | 3.9 |
B. | 4.9 |
C. | 5.9 |
D. | 6.9 |
Answer» D. 6.9 | |