📊 Physics
Q. A photon of X-ray has energy of 1 keV. A photon of visible radiation has energy of 3 eV. In this context, which one of the following statements is not correct?
  • (A) The wavelength of X-ray photon is less than the wavelength of visible radiation photon.
  • (B) Both the photons have different energies.
  • (C) The speeds of both the photons in vacuum are different
  • (D) The frequency of X-ray photon is higher than the frequency of visible radiation photon.
✅ Correct Answer: (C) The speeds of both the photons in vacuum are different

Explanation: The speed of all the electromagnetic radiation are always same and equal to the numerical value 3 x 108 m/sec.

Explanation by: Team MCQ Buddy
The speed of all the electromagnetic radiation are always same and equal to the numerical value 3 x 108 m/sec.

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