A gas of a certain type of atom is contained in a hollow glass tube and has electrical current passing through it. There are no other sources of light nearby, and the atoms in this tube emit light whose wavelength equals 795 nm. Circle two terms that cain be used to describe this process: A. absorption B. spontaneous emission C. stimulated emission D. bioluminescence E. fluorescence Solution Options \"B\" and \"C\" are correct. --> As there is no source of light therefore there cannot be \"absorption\" ---> \"Bioluminescence\" is related to biologically living organism --> \" Fluorescence\" is related to emission in absence of any source stimulated and spontaneous for monochromatic light. As wavelength is fixed, therefore emission has to be .

1. A gas of a certain type of atom is contained in a hollow glass tube and has electrical current
passing through it. There are no other sources of light nearby, and the atoms in this tube emit
light whose wavelength equals 795 nm. Circle two terms that cain be used to describe this
process: A. absorption B. spontaneous emission C. stimulated emission D. bioluminescence E.
fluorescence
Solution
Options "B" and "C" are correct.
--> As there is no source of light therefore there cannot be "absorption"
---> "Bioluminescence" is related to biologically living organism
--> " Fluorescence" is related to emission in absence of any source stimulated and spontaneous
for monochromatic light.
As wavelength is fixed, therefore emission has to be