Which nature of light is considered to explain photoelectric effect?
Answers
Light is a transverse, electromagnetic wave that can be seen by humans. The wave nature of light was first illustrated through experiments on diffraction and interference. Like all electromagnetic waves, light can travel through a vacuum. The transverse nature of light can be demonstrated through polarization.
Light exhibits dual nature i.e both particle nature and wave nature.
The wave nature of the particle explains various optical phenomenon like reflection,refraction,diffraction, polarization etc.
There are three important phenomena that can be explained by particle nature of light which are named as black body radiation,photo electric effet and crompton effect.
As per Einstein's photo electric law, light consists of tiny particles called photons. Light having suitable frequency i.e greater than threshold frequency will be able to emit photo electrons which are bounded by the surface barrier.
The photo electric current increases or decreases with the decrease or increase of intensity of light i.e the number of photons incident per unit time.
Greater the intensity of photons, the more will be the photo electric current.
Hence, the correct answer to the question is particle nature of light.