Spectrometric Analysis of Evidence Quiz Crafted By-
Saddam Hussain
Introduction to Spectrometric Analysis of Evidence
Spectroscopy has proven to be a non-destructive method for successfully analyzing different bodily fluids as well as other types of forensic materials such as drugs or fingerprints. This allows the evidence to be tested while still preserving it. It also utilizes portable instrumentation making it easy to do the testing right at the location of a crime without even removing the evidence from the scene. Another advantage is that a specimen does not require any preparation to be evaluated by a spectrophotometer. In order to identify samples, such as type of body fluid, the spectrophotometer compares samples to data within a spectral library.
Let's look at the questions and their answers.
Ques 1. A detector that can be used in visible Spectrophotometry is
a) Ion Separator
b) Quadruple Spectrometer
c) Photovoltaic Cell
d) Magnetic Coils
Answer- c) Photovoltaic Cell
Ques 2. Physical property on Spectrophotometry.
a) Absorption and Rotation of radiation
b) Absorption and Potential of radiation
c) Rotation and Emission of radiation
d) Absorption and Emission of radiation
Answer- a) Absorption and Emission of radiation
Ques 3. The technique is good from the visible corner of the lubricating oil
a) FTIR Spectrographic
b) IR Spectrographic
c) Mass Spectroscopy
d) Both (a) and (b)
Answer- a) FTIR Spectrographic
Ques 4. Which one is used to remove the pigment of paint
a) X-ray
b) IR Spectroscopy
c) Micro- Spectrophotometry
d) None of the above
Answer- c) Micro- Spectrophotometry
Ques 5. Which one is used to access the components of paint in hit and run case
a) UV
b) Fluorescent
c) X-ray
d) IR
Answer-d) IR
Ques 6. With the help of whom the trace evidence (lipstick, cigarette butts) can be shown
a) Optical Light Microscopy
b) Atomic Force Microscopy
c) Scanning Electron Microscopy
d) Raman Spectroscopy
Answer- d) Raman Spectroscopy
Ques 7. Nernst glower is used as the radiation source in
a) Atomic Emission Spectroscopy
b) Infra-Red Spectrophotometer
c) Flame Ionization Spectrophotometer
d) ICP-AES
Answer- b) Infra-Red Spectrophotometer
Ques 8. The microscope which is more suitable for studying the class characteristics of a tool mark is
a) Compound microscope
b) Stereo microscope
c) Polarizing microscope
d) Phase-contrast microscope
Answer- b) Stereo microscope
Ques 9. Examination of charred documents can be carried out by
a) Visible light
b) Infrared radiation
c) Oblique light
d) U-V fluorescence
Answer- b) Infrared radiation
Ques 10. Basic requirements of a Monochromator is/are
a) Resolution
b) Spectral Range
c) Dispersion
d) All of the above
Answer- d) All of the above