Calculate the number of photons if 6.62J of radiation energy of frequency of `10^12H_Z`.

Calculate the energy of photon of radiations having v = frequency 5xx10^14 s^(-1) (Planck's constant = 3.9xx10^14 s^(-1) )

Calculate the number of photons emitted form the red line (6560A^@) of hydrogen of energy 0.1 Joule

Calculate the energy of photon having frequency of 1.0xx10^15 sec^(-1) (Planck's of 1.0XX10^15 sec^(-1) )

Calculate the wavelength of a photon of energy 10 eV.

The frequency of a radiation is 6 xx 10^14 Hz. Calculate the energy per photon of this radiation (h = 6.24 xx 10^-34J.S)

Calculate frequency and wave number of radiation having wavelength 600 nm.

The relation between energy of a radiation and its frequency was given by:

Calculate and compare the energies of two radiations, one with a wavelength of 400 nm and the other with 800 nm.

Calculate the energy of the photon of wave-length 4500A. Given h= 6.6xx10^(-34) J sec.