Analytical Tools in Biotechnology MCQs

Question 1

Which of the following is not a limitation of Beer Lambert's law, which gives the relation between absorption, thickness and concentration?

Accepted Answer

Radiation must have higher bandwidth

Answer

Concentration must be lower

Answer

Radiation source must be monochromatic

Answer

Does not consider factors other than thickness and concentration that affect absorbance

Question 2

Phototubes are more sensitive than photovoltaic cells.

Accepted Answer

True

Answer

False

Question 3

Velocity of electromagnetic radiation is more in a vacuum than in any medium.

Accepted Answer

True

Answer

False

Question 4

Which of the following is the wavelength of microwave radiation?

Accepted Answer

0.75 - 3.75 mm

Answer

10 - 780nm

Answer

0.78 - 30μm

Answer

0.6 - 10 m

Question 5

Which of the following is not a detector used in Flame emission photometers?

Accepted Answer

Chromatogram

Answer

Photronic cell

Answer

Photovoltaic cell

Answer

Photoemissive tube

Question 6

Which of the following is not a component of the emission system in Flame photometer?

Accepted Answer

Chopper

Answer

Burner

Answer

Atomiser

Answer

Fuel gases and their regulation

Question 7

Which of the following is the advantage of prism monochromators?

Accepted Answer

Dispersion is non-overlapping

Answer

Dispersion occurs in non-linear manner

Answer

Dispersion is overlapping

Answer

Dispersion occurs in a linear manner

Question 8

Electromagnetic radiation can travel through a vacuum.

Accepted Answer

True

Answer

False

Question 9

Which of the following is not an advantage of Laminar flow burner used in Flame photometry?

Accepted Answer

Sample containing two or more solvents can be burned efficiently

Answer

Noiseless

Answer

Stable flame for analysis

Answer

Efficient atomization of sample