" The greater the energy of a photon,the "

The ratio of the energy of a photon of wavelength 3000 "Å" to that of photon of wavelength 6000 "Å" is :

An electron and a photon have got the same de- Broglie wavelength. Prove that total energy of electron is greater than energy of photon.

What is the expression for the energy of a photon?

The order of energy of X-ray photon is :-

Of the following statement about the photoelectric effect, which are true and which are false? (a) The greater the frequency of the incident light is, the greater is the stopping potential. (b) The greater the intensity of the incident light is, the greater is the cutoff frequency. (c) The greater the work function of the target material is, the greater is the stopping potential. (d) The greater the work function of the target material is, the greater is the cutoff frequency. (e) The greater the frequency of the incident light is, the greater is the maximum kinetic energy of the ejected electrons. (f) The greater the energy of the photons is, the smaller is the stopping potential.

The quantum of energy in a photon is