Colorimetry and Spectrometry MCQs

Welcome to our comprehensive collection of Multiple Choice Questions (MCQs) on Colorimetry and Spectrometry, a fundamental topic in the field of Analytical Instrumentation. Whether you're preparing for competitive exams, honing your problem-solving skills, or simply looking to enhance your abilities in this field, our Colorimetry and Spectrometry MCQs are designed to help you grasp the core concepts and excel in solving problems.

In this section, you'll find a wide range of Colorimetry and Spectrometry mcq questions that explore various aspects of Colorimetry and Spectrometry problems. Each MCQ is crafted to challenge your understanding of Colorimetry and Spectrometry principles, enabling you to refine your problem-solving techniques. Whether you're a student aiming to ace Analytical Instrumentation tests, a job seeker preparing for interviews, or someone simply interested in sharpening their skills, our Colorimetry and Spectrometry MCQs are your pathway to success in mastering this essential Analytical Instrumentation topic.

Note: Each of the following question comes with multiple answer choices. Select the most appropriate option and test your understanding of Colorimetry and Spectrometry. You can click on an option to test your knowledge before viewing the solution for a MCQ. Happy learning!

So, are you ready to put your Colorimetry and Spectrometry knowledge to the test? Let's get started with our carefully curated MCQs!

Colorimetry and Spectrometry MCQs | Page 3 of 10

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Q21.
Which of the following detectors does not require a battery and is also known as barrier layer cell?

a.

Photomultiplier tube

b.

Photovoltaic cell

c.

Photoemissive tubes

d.

Photo reflector

Discuss
Answer: (b).Photovoltaic cell
Q22.
Which of the following detectors is used to detect light intensities which are very weak?

a.

Photomultiplier tube

b.

Photovoltaic cell

c.

Photoemissive tubes

d.

Photo reflector

Discuss
Answer: (a).Photomultiplier tube
Q23.
How is Tungsten Halogen lamp differs from normal Tungsten filament lamp used in absorption spectroscopy?

a.

It has a tungsten filament and is filled with inert gas

b.

Iodine is added to normal filling gas

c.

Iodine is coated on tungsten filament

d.

Iodine is added to inert gas

Discuss
Answer: (b).Iodine is added to normal filling gas
Q24.
Instead of glass filters, why gelatin filters could not be used for a long period while both are Absorption filters?

a.

Gelatin tends to evaporate and hence they deteriorate

b.

Gelatin is affected by humidity in the environment

c.

They deteriorate due to absorption of heat leading to changes in gelatin

d.

Gelation is affected by temperature in the environment

Discuss
Answer: (c).They deteriorate due to absorption of heat leading to changes in gelatin
Q25.
How does continuous wedge filter differ from normal interference filter used in absorption spectroscopy?

a.

It permits continuous selection of different wavelength

b.

It allows a narrow band of wavelengths to pass

c.

It has two semi-transparent layers of silver

d.

Space layer is made of a substance having low refractive index

Discuss
Answer: (a).It permits continuous selection of different wavelength
Q26.
Which of the following could be used as the layer of dielectric in interference filters used in Absorption Spectroscopy?

a.

Graphite

b.

MgF₂

c.

Fe

d.

AgNO₃

Discuss
Answer: (b).MgF₂
Q27.
How can stability of radiation be achieved in incandescent or discharge source used in Absorption Spectroscopy?

a.

Using filters

b.

Using monochromators

c.

Using slits

d.

By controlling the source voltage

Discuss
Answer: (d).By controlling the source voltage
Q28.
To tolerate high operating temperatures, which of the following has to be done in incandescent or tungsten filament lamps?

a.

Alloys must be used

b.

Nitrogen be used instead of inert gas

c.

Envelope is fabricated with quartz

d.

Envelope is fabricated with copper

Discuss
Answer: (c).Envelope is fabricated with quartz
Q29.
Which of the following is not a reason for laser not being generally used as a source of radiation for UV, Visible Spectroscopy?

a.

High cost

b.

Limited range of wavelength

c.

Less intensity

d.

Complex to work with

Discuss
Answer: (c).Less intensity
Q30.
Which of the following statements is false about single beam absorption instruments?

a.

Tungsten bulb is used as a source

b.

Beam splitter is used to get parallel beam

c.

Test tube is used as sample holder

d.

Photovoltaic cell as detector

Discuss
Answer: (b).Beam splitter is used to get parallel beam
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