35. Special Relativity
Inertial Reference Frames
66PRACTICE PROBLEM
Excited sodium atoms can be in the 3p state before they decay to a lower energy state. If the characteristic time for a 3p sodium atom to decay is 17 nanoseconds, what is the time interval during which 15% of a sample of 3p sodium atoms will decay?
Excited sodium atoms can be in the 3p state before they decay to a lower energy state. If the characteristic time for a 3p sodium atom to decay is 17 nanoseconds, what is the time interval during which 15% of a sample of 3p sodium atoms will decay?