[" The wavelength of a "1" keV photon is "],[1.24times10^(-9)m" .What is the "],[" frequency of "1" MeV photon? "]

The wavelength of a 1 keV photon is 1.24 xx 10^-9 m . What is the frequency of 1 MeV photon.

The wavelength of a 1 keV photon is 1.24 xx 10^-9 . What is the frequency of 1 MeV photon ?

A wavelength of a 1 KeV photon is 1.2xx10^(-9) m. What is the frequency of 1MeV photon ?

The wavelength of a proton and a photon are same. Then

What is the wavelength of a photon of energy 1 eV?

What is the wavelength of a photon of energy 1 eV?

A 20 KeV energy electron is brought to rest in an X-ray tube, by undergoing two successive bremsstrahling events, thus emitting two photons. The wavelength of the second photon is 130 xx10^(-12) m greater than the wavelength of the first emitted photon. Calculate the wavelength of the two photons.