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Physics - Chapter 27
Question | Answer |
---|---|
What is the name of the Dutch scientist who argued that light was a wave? | Huygens |
A(n) ____ is a mass-less bundle of electromagnetic energy. | photon |
What is the name of the scientist who published a theory explaining that light consists of particles. | Einstein |
Its value is about 300 000 km/s. What is it? | speed of light |
A(n) _____ is the distance light travels in a year. | light-year |
The ____ is the range of electromagnetic waves. | electromagnetic spectrum |
____ waves are electromagnetic waves that have frequencies lower than the red of visible light. | infrared |
____ waves are electromagnetic waves that have frequencies higher than the violet of visible light. | ultraviolet |
Any substance that allows light to pass through it is called___ | transparent |
A material that absorbs light without reemitting it is called___> | opaque |
Which type of wave is light? | transverse |
___ is the aligning of vibrations in a transverse wave, usually by filtering out waves in other directions. | polarization |