State the factors, which controls wavelength of light, emitted by a LED.

State the factors, which controls intensity of light, emitted by a LED.

The wavelength of LED

The wavelength and intensity of light emitted by an LED depend upon

State one factaor which determines the intensity of light in the phton picture of light?

The electron in given Bohr orbit has a total energy of -3.4 eV.Calculate its wavelength of the light eitted ,if an electron makes a transition to the ground state.(Ground state energy = -13.6 eV).