Concept explainers
Table that show expected observation of a particle theory of light and wave theory of light.
Answer to Problem 15P
Solution:
Table that show expected observation of light is as follows:
Wave nature | Particle nature |
Light is supposed to travel as wave | |
Spectral lines in hydrogen spectrum | |
Diffraction of light through narrow slit |
Explanation of Solution
Initially light was considered to be travelling as a wave, and to prove the wave nature of the light several different experiments were performed. The property which describe the wave nature of light are interference, diffraction, reflection, etc.
Then Einstein proposed his particle theory, in which light was assumed to be travelling in a packet of quanta (particle), which shows the particle nature of light, and then after many scientists proved particle nature of light. The property that shows the particle nature of light are Compton effect, scattering, Raman effect etc. But still, light is assumed to be travelling as both particle and wave.
The expected observation of a particle theory of light and wave theory of light are tabulated below:
Wave nature | Particle nature |
Light is supposed to travel as wave | |
Spectral lines in hydrogen spectrum | |
Diffraction of light through narrow slit |
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