A. 6×10-19
B. 6.25×1018
C. 1.6×1019
D. 6.25×10-18
Submitted by: Danish Rehman
(Sponsored by Sir Tauqeer)
(Sponsored by Sir Tauqeer)
(Sponsored by Sir Tauqeer)
(Sponsored by Sir Tauqeer)
(Sponsored by Sir Tauqeer)
(Sponsored by Sir Tauqeer)
