A gas absorbs a photon of 355 nm and emits at two wavelengths. If one of the emissions is at 680 nm, the other is at
Q. A gas absorbs a photon of 355 nm and emits at two wavelengths. If one of the emissions is at 680 nm, the other is at:
A. 518 nm
B. 1035 nm
C. 325 nm
D. 743 nm
Answer: 743 nm