SCI-220 Chapter 7

Which of the following color/filter combinations is correct?

• Purple and yellow

• Orange and green

• Blue and yellow

• Red and orange

IR can help reveal all the following types of evidence except:

• Bloodstains

• Ink

• Fingerprints

• Burned documents

Luminescence is a molecules ability to emit light from causes other than heat.

• True

• False

Tags

NGSS.MS-PS4-1

A glow in the dark toy would be an example of:

• Chemiluminescence

• Fluorescence

• Phosphorescence

What is the wavelength range for UV light?

• 700-1100

• 400-700

• 200-500

• 100-400

Tags

NGSS.HS-PS4-1

A colored filter allows all colors to pass through it except the color it is.

• True

• False

Tags

NGSS.MS-PS4-2

With ALS: light hits a stain --> stain absorbs energy --> then emits the remaining energy at ____.

• A longer wavelength and higher intensity

• A longer wavelength and a lower intensity

• A shorter wavelength and higher intensity

• A shorter wavelength and lower intensity

Tags

NGSS.MS-PS4-1

Which of the following is an example of IR light being reflected:

• Leaves of a tree appear lighter

• Blue pants turning black

• Ink disappears

• Marker fluoresces

Tags

NGSS.MS-PS4-2

RUVIS utilizes what type of light to visualize untreated latent fingerprints?

• IR

• Visible

• UV

• UV and IR

What is the biggest consideration when performing IR photography?

• Lighting

• Timing

• Focus

• Temperature