Quiz  /  Photometry Gate & PSU MCQ Questions With Answers

  • 1. 
    Which of the following is the advantage of grating monochromators?

  • Dispersion is non-overlapping
  • Dispersion occurs in non-linear manner
  • Dispersion is overlapping
  • Dispersion occurs in a linear manner

  • 2. 
    Which of the following is the advantage of prism monochromators?

  • Dispersion is non-overlapping
  • Dispersion occurs in non-linear manner
  • Dispersion is overlapping
  • Dispersion occurs in a linear manner

  • 3. 
    Which of the following is disadvantage of Laminar flow burner used in Flame photometry?

  • Noiseless
  • Stable flame for analysis
  • Efficient atomization of sample
  • Sample containing two or more solvents can be burned efficiently

  • 4. 
    In Flame photometry, Flame color’s intensity tells about

  • how much of the element present
  • Number of compound present
  • complex structure of compound
  • none of above

  • 5. 
    Flame photometry is mainly used for,

  • 1st and 2nd group elements
  • 3rd and 4th group elements
  • Whole periodic table
  • none of this

  • 6. 
    Laminar flow burner used in Flame photometers is also known as

  • Turbulent burner
  • Premix burner
  • Total consumption burner
  • Nozzle mix burner

  • 7. 
    The elements like gold, silver, & inert gases are not analyzed by flame photometry because

  • They need higher amount of energy for excitation than 1st and 2nd group.
  • They need lesser amount of energy for excitation than 1st and 2nd group.
  • not related to energy
  • depends on molecular weight

  • 8. 
    Which of the following is the principle of Flame emission photometers?

  • Radiation is absorbed by non-excited atoms in vapour state and are excited to higher states
  • Medium absorbs radiation and transmitted radiation is measured
  • Colour and wavelength of the flame is measured
  • Only wavelength of the flame is measured
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