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