PROPERTIES OF PHOTON

PHOTON FLUX & PHOTON DENSITY

(a) describe briefly three experimentally observed features in the phenomenon of photoelectric effect. (b) Discuss briefly how wave theory of light cannot explain these features. OR (a) Write the important properties of photons which are used to establish Eintein's photoelectric equation . (b) Use this equation to explain the concept of (i) threshould frequency and (ii) stopping potential .3.

The photon having 6000a wavelength has energy E. If the energy of photon 2E find the wavelength of photon.

If E and p are the energy and momentum of a photon respectively then on decreasing in the wavelength of photon.

If E and p are the respective energy and momentum of a photon, then on reducing the wavelength of the photon,

Photons are

What are photons ? State their properties.

What are Photons? Give its two properties.