Gases emit radiation under which of the following conditions which can be used for determination of gases?
A. When mixed with other gases
B. When kept at suitable temperature
C. With sufficient electrical excitation and at suitable pressures
D. When exposed to radiation
Answer:C
Gases emit radiation under which of the following conditions which can be used for determination of gases?
A. When mixed with other gases B. When kept at suitable temperature C. With sufficient electrical excitation and at suitable pressures D. When exposed to radiation
Explanation: Gases emit radiation with sufficient electrical excitation and at suitable pressures. Gases emit radiation in different ways. It can be in the form of spark, arc or glow discharge in different parts of radiation spectrum.