What is kinetic mass of photon?

What is kinetic energy of 1g of O_(2) at 47^(@)C ?

What is the number of photons of light with a wavelength of 4000 pm that provide 1 J of energy?

What is law of mass ?

What is the momentum of a photon of frequency nu ?

What is a photon?

The mass of moving photon is

The rest mass of photon of wavelength lambda is

The de Broglie wavelength of an electron moving with a velocity of 1.5×10 8 m/s is equal to that of a photon. Find the ratio of the kinetic energy of the photon to that of the electron.

What is the velocity of a photon ?