Which of the following is the principle of Golay cell which is used as a detector in IR spectroscopy?(a) Expansion of gas upon heating(b) Increase in resistance due to an increase in temperature and vice versa(c) Temperature difference gives rise to a potential difference in the material(d) Decrease in resistance due to an increase in temperatureI had been asked this question during an online interview.This interesting question is from Instrumentation of IR topic in section Colorimetry and Spectrometry of Analytical Instrumentation

Which of the following is the principle of Golay cell which is used as

1.	Which of the following is the principle of Golay cell which is used as a detector in IR spectroscopy?(a) Expansion of gas upon heating(b) Increase in resistance due to an increase in temperature and vice versa(c) Temperature difference gives rise to a potential difference in the material(d) Decrease in resistance due to an increase in temperatureI had been asked this question during an online interview.This interesting question is from Instrumentation of IR topic in section Colorimetry and Spectrometry of Analytical Instrumentation
Answer» The CORRECT answer is (a) Expansion of gas upon heating To explain: It is also known as pneumatic detector. The gases EXPAND on heating and this in TURN leads to the MOVEMENT of a diaphragm just like in pneumatic sensors.

Discussion

No Comment Found

Related InterviewSolutions

Spectroscopy deals with interaction of electromagnetic radiation with matter. What is the speed of this radiation in vacuum in m/s?(a) 6 x 10^8(b) 5 x 10^8(c) 7 x 10^8(d) 3 x 10^8I had been asked this question by my school teacher while I was bunking the class.This question is from Spectral Method of Analysis in chapter Colorimetry and Spectrometry of Analytical Instrumentation
Which type of Quantum Transition takes place in Ultra Violet and Visible spectroscopy?(a) Rotation of molecules(b) Nuclear(c) Bonding electrons(d) Spin of nuclei in a magnetic fieldThis question was posed to me in examination.I'd like to ask this question from Spectral Method of Analysis topic in section Colorimetry and Spectrometry of Analytical Instrumentation
Which of the following is not a property or parameter of electromagnetic radiation?(a) Wavelength(b) Voltage(c) Wave number(d) AmplitudeI have been asked this question in my homework.My doubt is from Spectral Method of Analysis in section Colorimetry and Spectrometry of Analytical Instrumentation
Which of the following is not a type of Spectroscopy?(a) Gamma ray(b) X ray(c) Nuclear magnetic resonance(d) SoundThis question was posed to me in a national level competition.My query is from Spectral Method of Analysis topic in portion Colorimetry and Spectrometry of Analytical Instrumentation
Electromagnetic radiation can travel through a vacuum.(a) True(b) FalseThis question was posed to me in an interview for job.My question is taken from Spectral Method of Analysis topic in portion Colorimetry and Spectrometry of Analytical Instrumentation
Which of the following is false about the wavelengths of electromagnetic radiation?(a) Radiation with short wavelengths have high energies(b) Energy does not depend on wavelength(c) Radiation with long wavelengths have low energies(d) Energy depends on wavelengthThe question was posed to me in an interview for job.This interesting question is from Spectral Method of Analysis in portion Colorimetry and Spectrometry of Analytical Instrumentation
How is the wave number of electromagnetic radiation related to wavelength?(a) It is the reciprocal of wavelength(b) It is directly proportional to wavelength(c) It is not related to wavelength(d) It is equal to wavelengthThis question was posed to me in an interview.This interesting question is from Spectral Method of Analysis topic in chapter Colorimetry and Spectrometry of Analytical Instrumentation
Which of the following is the wavelength of microwave radiation?(a) 10 – 780nm(b) 0.78 – 30µm(c) 0.6 – 10 m(d) 0.75 – 3.75 mmI got this question in an interview for internship.My query is from Spectral Method of Analysis in portion Colorimetry and Spectrometry of Analytical Instrumentation
Velocity of electromagnetic radiation is more in a vacuum than in any medium.(a) True(b) FalseThe question was posed to me at a job interview.My doubt stems from Spectral Method of Analysis in section Colorimetry and Spectrometry of Analytical Instrumentation
Which of the following is the wavenumber of UV and Visible radiation?(a) 1 x 10^6 to 1.3 x 10^4 m^-1(b) 1 x 10^6 to 1.3 x 10^4 m(c) 13 – 27 m^-1(d) 1 x 10^6 to 1.3 x 10^4 m^2The question was asked during an interview for a job.This interesting question is from Spectral Method of Analysis in division Colorimetry and Spectrometry of Analytical Instrumentation

Discussion

No Comment Found

Related InterviewSolutions

Reply to Comment