[" and emits at two wavelengths.If one of the emission is at "680nm" ,"],[qquad [" (3) "743nm," [AlEEE "2011,4/120]]]

A gas absorbs a photon of 355 nm and emits at two wavelengths . If one of the emission is at 6 80 nm , the other is at :

A gas absorbs a photon fo 355nm and emits at two wavelengths . If one fo the emission is at 6 80 nm , the other si at :

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 gas absorbs photon of 355 nm and emits at two wavelengths. If one of the emission is at 680 nm, the other is at

A gas absorbs photon of 355 nm and emits at two wavelengths. If one of the emission is at 680 nm the other is at

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