The velocity of laser light is _ to ordinary light.
Correct answer: A. Equal
- A. Equal
- B. Higher
- C. Lesser
- D. Much higher
Explanation
Laser light is basically just light. Laser light is coherent, that means it has waves of equal frequency and in phase, but other than that it is just light.
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About Photons and the Particle Model of Light
The particle model treats light as photons with energy E equals hf and momentum related to wavelength. Questions involve the photoelectric effect, work function, threshold frequency, stopping potential and photon energy, while distinguishing particle behaviour from the wave description of interference and diffraction.
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