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

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

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

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

In the wave picture of light, intensity of light is determined by square of the amplitude of wave. What determines the intensity of light in the photon picture of light.

Draw a graph showing the variation of intensity of polarized light transmitted by an analyser.