Instrumentation of IR MCQ

Test your knowledge with important Instrumentation of IR MCQ and their applications. These MCQs are beneficial for competitive exams too. Explore 30 + more Instrumentation of IR MCQs at Bissoy

• In a solid sample treatment technique, the finely ground solid sample is mixed with mineral oil to make a thick paste which is then spread between IR transmitting windows. What is the name of this solid sample treatment technique?
  ক

  Pressed pellet

  খ

  Mull technique

  গ

  Solid films

  ঘ

  Solids run in solution
• Which of the following is the principle of Golay cell which is used as a detector in IR spectroscopy?
  ক

  Expansion of gas upon heating

  খ

  Increase in resistance due to an increase in temperature and vice versa

  গ

  Temperature difference gives rise to a potential difference in the material

  ঘ

  Decrease in resistance due to an increase in temperature
• Which of the following is not used as pyroelectric material used in pyroelectric transducers in Infrared spectroscopy?
  ক

  Triglycine Sulphate

  খ

  Deutrated Triglycine Sulphate

  গ

  Some Polymers

  ঘ

  Tetraglycine sulphate
• Which of the following is not a technique for preparing solid samples in IR spectroscopy?
  ক

  Solids run in solution

  খ

  Mull technique

  গ

  Solid films

  ঘ

  Thin films
• Bolometer, a type of detector, is also known as ___________
  ক

  Resistance temperature detector (RTD)

  খ

  Thermistor

  গ

  Thermocouple

  ঘ

  Golay cell
• What is the composition of Globar rod which is used as a source in Mid IR spectroscopy?
  ক

  Silicon carbide

  খ

  Silver chloride

  গ

  Silicon dioxide

  ঘ

  Silver carbide
• Which of the following is not a composition of Nernst glower or Nernst filament?
  ক

  Oxides of Zirconium

  খ

  Oxides of Barium

  গ

  Oxides of Yitrium

  ঘ

  Oxides of Thorium
• Which of the following options are correct in terms of wavelength for the different types of IR spectrometer?
  ক

  Near IR: 0.8 – 2.5 mm

  খ

  Mid IR: 0.8 – 2.5 mm

  গ

  Far IR: 2.5 – 50 mm

  ঘ

  Mid IR: 50 – 100 mm
• Which of the following is the wave number of near infrared spectrometer?
  ক

  4000 – 200 cm-1

  খ

  200 – 10 cm-1

  গ

  12500 – 4000 cm-1

  ঘ

  50 – 1000 cm-1
• Which of the following is not a source used in Mid Infrared Spectrophotometer?
  ক

  Nernst glower

  খ

  High pressure mercury arc lamp

  গ

  Globar

  ঘ

  Nichrome wire