wiz-icon
MyQuestionIcon
MyQuestionIcon
1
You visited us 1 times! Enjoying our articles? Unlock Full Access!
Question

Which theory explains all the characteristics of light?

Open in App
Solution

Quantum theory of light explains the characteristics of light. According to which the light has dual character. Light acts as wave in some experiments like diffraction, interference. Whereas in some experiments light is considered to be having particle character as in photoelectric effect.

In photoelectric effect ,the wave-like property of light could not used to explain the phenomenon. But, Einstein said that light is made of particles called photons each having energy E=hν such that each photon knocks out 1 electron.

The wave nature of light could explain that light travels in a straight line as an electromagnetic wave with a speed of 3×108ms1and it could also travel through vacuum. Therefore, quantum theory of light could explain all the properties of light.

flag
Suggest Corrections
thumbs-up
0
Join BYJU'S Learning Program
similar_icon
Related Videos
thumbnail
lock
The Davisson-Germer Experiment
PHYSICS
Watch in App
Join BYJU'S Learning Program
CrossIcon