Analytical Tools in Biotechnology MCQs

Question 1

In the most widely used beam splitter, a thin film of . . . . . . . . is sandwiched between two plates of low refractive index solid. Fill the blank with a suitable option.

Accepted Answer

Mylar

Answer

Silicon carbid

Answer

Ferrous oxide

Answer

Silver chloride

Question 2

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

Accepted Answer

Premix burner

Answer

Turbulent burner

Answer

Total consumption burner

Answer

Nozzle mix burner

Question 3

Which of the following is not the advantage of Fourier Transform Spectrometers?

Accepted Answer

Easy to maintain

Answer

Signal to noise ratio is high

Answer

Information could be obtained on all frequencies

Answer

Retrieval of data is possible

Question 4

Which of the following is not used as pyroelectric material used in pyroelectric transducers in Infrared spectroscopy?

Accepted Answer

Tetraglycine sulphate

Answer

Triglycine Sulphate

Answer

Deutrated Triglycine Sulphate

Answer

Some Polymers

Question 5

In Michelson's interferometer, the . . . . . . . . of the detector output will depend upon the intensity of incoming radiation.

Accepted Answer

Amplitude

Answer

Velocity

Answer

Frequency

Answer

Phase

Question 6

Which of the following statement is false about double beam absorption instruments?

Accepted Answer

Reference beam must have a higher intensity than sample beam

Answer

It is similar to single beam instruments except two beams are present

Answer

Tungsten bulb is used as a source

Answer

Both the beams after they pass through respective samples are compared

Question 7

Which of the following is false about the wavelengths of electromagnetic radiation?

Accepted Answer

Energy does not depend on wavelength

Answer

Radiation with short wavelengths have high energies

Answer

Radiation with long wavelengths have low energies

Answer

Energy depends on wavelength

Question 8

In Michelson Interferometer, if the reflected and transmitted beams are in phase at the beam splitter, then maximum intensity will reach the detector.

Accepted Answer

True

Answer

False

Question 9

Which of the following is the purpose of the beam splitter in double beam photometer or colorimeter?

Accepted Answer

Splits beam into two equal intensity beams

Answer

Splits beam in such a way that sample beam has higher intensity

Answer

Splits beam in such a way that a reference beam has higher intensity

Answer

Merge two equal intensity beams into single beam