Compare the energies of two radiations `E_(1)` with wavelength 800 nm and `E_(2)` with wavelength 400 nm.

Calculate and compare the energies of two radiations one with wavelength 800 pm and the other with wavelength 400 pm.

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

Compare the energies of two radiation one with a wavelength of 300 nm and other with 600 nm .

Compare the energies of two radiation one with a wavelength of 300 nm and other with 600 nm .

Compare the energies of two radiations on with l = 600 nm and other with 30 nm.

Calculate and compare the energies of two radition one with a wavelength of 300 nm and the other 600 nm

The energy of a photon of radiation having wavelength 300 nm is,

What is the wave number of a radiation of wavelength 400 nm ?

What is the wave number of a radiation of wavelength 400 nm ?

A black body is at a temperature of 5760 K. The energy of radiation emitted by the body at wavelength 250 nm is U_(1) , at wavelength 500 nm is U_(2) and at 1000 nm is U_(3) , Wien's constant, b=2.88xx10^(6) nm K, which of the following is correct ?