Fundamentals of Forensic Physics Unit 3

Paints can be analyzed by

• Absorption elution technique
• Gel Diffusion
• Electrophoresis
• Pyrolysis Gas Chromatography

The consistency of paint is adjusted by which of the following

• Solvent
• Driers
• Additives
• Primer

Paint consists of following three principal components namely A. Binders B. Varnish C. Pigment D. Solvent Choose the correct answer from the options given below:

• A,B,D only
• A,C,D only
• B,C,D only
• A,B,C only

Which type of microscope is primarily used to examine fiber morphology?

• Compound microscope
• SEM
• Confocal microscope
• Polarizing light microscope

Which is not a good packaging and storage medium for trace evidence

• Paper bags
• Sealed plastic bags
• Glass containers
• None of the above

Which of the following is a non-destructive method of fiber analysis?

• FTIR Spectroscopy
• TLC
• Dye extraction
• Burning test

Which of the following fiber smells like burning paper and leaves grey ash

• Polyester
• Cotton
• Wool
• Nylon

Wool and Silk will dissolve in

• Acetone
• Phenol
• Sulphuric acid
• Sodium hypochlorite

In torn fiber analysis, a physical match is considered:

• Circumstantial evidence
• Class evidence
• Individual evidence
• Irrelevant evidence

Microscopic examination of paint chips from a car may include

• Sequence of paint layers
• Colour of the paint
• Elemental profile of paint
• All of the above