15 Questions
Which phenomenon is responsible for the blue color of the sky?
Scattering
What happens to the absorbed energy by objects or substances?
It is converted to infrared radiation
Which type of scattering causes the sky to appear blue?
Rayleigh scattering
In what form is the absorbed energy converted by objects or substances?
Infrared radiation
Which phenomenon is responsible for the color pattern known as 'Newton's ring'?
Interference
Which element is responsible for the color of the sky during daytime?
Ultraviolet light
In photography, the property of light that determines the color cast in an image is its:
Amplitude
Which of the following is true regarding the electromagnetic spectrum?
Waves with shorter wavelengths have higher energy
What is the primary benefit of understanding wave theory in forensic photography?
Improved crime scene investigation techniques
Which statement accurately describes the relationship between wavelength and frequency of light waves?
Shorter wavelengths correspond to higher frequencies
What role does understanding the properties of light play in conducting crime scene photography?
Selecting appropriate lighting equipment for different scenarios
How does knowledge of electromagnetic spectrum assist in forensic photography?
Enhances the use of infrared technology in crime scene investigation
What effect do shorter wavelengths have on the penetration of light through specific materials?
Decrease penetration depth
Why is it important for forensic photographers to have knowledge about light properties and rules?
To ensure accurate color representation in images for evidence documentation
What is one advantage of utilizing forensic light sources in crime scene photography?
Aiding in evidence detection under different lighting conditions
Study Notes
- Subtractive color mixing is more complex than additive color mixing with colored spotlights.
- In subtractive process, cyan filter transmits blue and green light, absorbs red; yellow filter transmits green and red light, absorbs blue; magenta transmits red and blue light, absorbs green and white.
- Complementary colors: Magenta (shortest wavelength), Cyan, Yellow.
- Production of colors through absorption: Objects absorb specific wavelengths based on their molecular vibrational frequencies, resulting in color separation.
- Additive color mixture: Combining blue, green, and red lights produces cyan, yellow, and magenta secondary colors, with white light at the center.
Test your knowledge on light absorption and scattering phenomena. Learn about how certain frequencies of light are absorbed by objects, causing them to become warmer, as well as how the color of the sky is due to the scattering of light in the atmosphere.
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