Physics 6.3.6 Flashcards
White Light is a Mixture of…
All the Colour Light Wavelengths of the Spectrum.
White Light may be Separated into all its Colour Light Wavelengths by Passing it through a Prism. This is done by…
Refraction.
How do ‘Colour Filters’ Work?
Colour Filters Work by Absorbing Certain Wavelengths, & Transmitting Other Wavelengths. These Certain Wavelengths Correspond to Certain Colours.
When White Light Passes Through a Red Filter, what happens? (2)
-Red Light Wavelength is Transmitted.
-All the Other Colour Light Wavelengths are Absorbed.
The Colour that is Transmitted by a Colour Filter is…
The Same Colour as the Filter.
What is the Colour of an Opaque Object Determined by?
The Colour of an Opaque Object is Determined by which Wavelengths of Light are More Strongly Reflected.
Wavelengths that are not Reflected by Objects are ___. Hence, this is why Different Objects Appear to be Different Colours.
Absorbed.
An Object will Appear White if…
All Wavelengths are Reflected Equally.
An Object will Appear Black if…
All Wavelengths are Absorbed.
An Object will Appear Transparent if…
All the Light is Transmitted, & Only a Small Amount is Reflected or Absorbed.
The Colour Spectrum is…
Only a Very Narrow Part of the Overall Electromagnetic Spectrum.
As White Light Emerges from a Glass Pyramid, it Splits Up into all the Colours of the…
Light Spectrum. (Red-Violet).
What Makes a Surface Opaque?
When Light Wavelengths are Absorbed & Reflected; no Transmission of Light Wavelengths.
What Makes a Surface Transparent?
When Light Wavelengths are Absorbed & Transmitted.
What Makes a Surface Translucent?
When Most Light is Transmitted, but Some Light is Scattered.
