1.

Which of the following is the wavelength of the radiation generated when an air stream containing sulphur dioxide is burned in a hydrogen-rich flame?(a) 243 nm(b) 394 nm(c) 467 nm(d) 516 nmI have been asked this question by my school principal while I was bunking the class.Origin of the question is Sulphur Di-oxide Monitoring topic in division Pollution Monitoring Instruments of Analytical Instrumentation

Answer»

Right option is (B) 394 nm

The EXPLANATION is: The wavelength of the radiation generated when an air stream containing sulphur dioxide is burned in a hydrogen-rich flame is 394 MM. A narrow band interference filter is USED to shield radiations with all other WAVELENGTHS.



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