Rayleigh Scattering Cause
Rayleigh scattering is a type of light scattering that happens when electromagnetic radiation (like visible light) interacts with particles. This specific type of scattering occurs when the size of the particles is significantly smaller than the wavelength of the radiation.
For Rayleigh scattering to occur, the condition is that the particle size ($d$) must be much smaller than the wavelength of light ($\lambda$). This can be written as: $d \ll \lambda$
In Earth's atmosphere, the primary scatterers are gas molecules like nitrogen ($N_2$) and oxygen ($O_2$). These molecules have diameters far smaller than the wavelengths of visible light (which range from approximately 400 nm to 700 nm).
Because these atmospheric molecules are much smaller than the wavelength of light, they efficiently scatter shorter wavelengths (blue and violet light) more than longer wavelengths (red and orange light). This differential scattering is responsible for the blue color of the sky.
Therefore, Rayleigh scattering in the atmosphere is caused by molecules whose size is much smaller than the wavelength.
Important Questions from Atmosphere
In the cities of our country, which among the following atmospheric gases are normally considered in calculating the value of Air Quality Index?
1. Carbon dioxide
2. Carbon monoxide
3. Nitrogen dioxide
4. Sulfur dioxide
5. Methane
Select the correct answer using the code given below.
A layer in the Earth's atmosphere called Ionosphere facilitates radio communication. Why?
1) The presence of ozone causes the reflection of radio waves to Earth.
2) Radio waves have a very long wavelength.
Which of the statements given above is/are correct?
The jet aircrafts fly very easily and smoothly in the lower stratosphere. What could be the appropriate explanation?
1) There are no clouds or water vapour in the lower stratosphere.
2) There are no vertical winds in the lower stratosphere.
Which of the statements given above is/are correct in this context?
The increasing amount of carbon dioxide in the air is slowly raising the temperature of the atmosphere, because it absorbs
Which one of the following is associated with the issue of control and phasing out of the use of ozone-depleting substances?
