Soil And Glass Flashcards Preview

(S1/Y1) CHE103 - Introduction To Forensics > Soil And Glass > Flashcards

Flashcards in Soil And Glass Deck (4)
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1
Q

Define the terms ‘radial’ and ‘concentric’ cracks

A

RADIAL - form on the side of the glass opposition to the side of impact

CONCENTRIC - appear on the side of Impact

2
Q

Describe the refractive index of glass

A
  • ratio of the velocity of the light in a vacuum to the velocity as it passes through the medium

N = velocity of light in vacuum / velocity of light in medium

3
Q

Define the term ‘glass’

A

Amorphous solid that lacks the ordered arrangement in a crystalline lattice

4
Q

Describe the Becke line immersion method

A
  • piece of glass immersed in liquid with RI matching the glass than glass should be invisible
  • piece of glass immersed in liquid with RI not matching the glass a bright halo appears