The metastable state for an atom in laser light is_____________?
A. 10-4 sec
B. 10-5 sec
C. 10-3 sec
D. 10-8 sec
The metastable state for an atom in laser light is_____________?
A. 10-4 sec
B. 10-5 sec
C. 10-3 sec
D. 10-8 sec