Which light has more velocity?
Correct answer: D. All are equal
- A. He-Ne laser
- B. White
- C. Yellow
- D. All are equal
Explanation
All waves in the electromagnetic spectrum travel at a speed of 3 × 108 m/s.Hence, D is the correct option.
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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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