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) Both    the    photons    have    different energies.

B) The wavelength of X-ray photon is less than the wavelength of visible radiation photon.

C) The   frequency   of   X-ray   photon   is higher  than  the  frequency  of  visible radiation photon.

D) The  speeds  of  both  the  photons  in vacuum are different

✔ Correct Answer: The  speeds  of  both  the  photons  in vacuum are different

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