Einstein gave an explanation for photoelectric emission based on the Planck’s quantum theory of light. When light of certain frequency (greater than threshold frequency) incidents on a metallic surface the energy on incident photon (hf) is: Partly used to eject …
The experimental arrangement of Millikan’s method to determine Planck’s constant ‘h’ is shown below. The apparatus consists of an evacuated chamber (vaccum) where different alkali metals are placed on a rotating table so that experiment can be performed for different …
Wave optics is the study of wave nature of a light. It can prove by their two phenomena’s of interference and diffraction. Wave front is defined as surface joining the points of same phase. The speed with which the wave …
Thomas Young first demonstrated interference from light waves with a double slit in 1801. The schematic diagram for this experiment is shown in below The single light source is located at S 0, and the light goes through two very narrow openings …
Light is defined in previous article However, a wave is free to oscillate right and left or up and down or at any angle between the vertical and horizontal. Some kinds of crystals have a special property of polarizing light, meaning that they …
