What determines the penetration of UV rays through the ozone layer?

AI Thread Summary
The penetration of UV rays through the ozone layer is primarily determined by the molecular composition of ozone, specifically O2 and O3. According to Max Planck's equation, higher frequency electromagnetic waves, such as UVC, carry more energy and are absorbed more effectively by ozone. In contrast, UVA and UVB rays, which have longer wavelengths, are less absorbed and can penetrate the ozone layer to reach the Earth's surface. The varying absorption characteristics of these UV rays highlight the protective role of the ozone layer. Understanding these dynamics is crucial for assessing UV radiation exposure on Earth.
Abhijit Nath
Messages
1
Reaction score
0
According to Max planks equation, E=h*f, the more is the frequency the more is the energy of the EM waves. So why UVC (shortest uv ray or high frequency uv ray ) is absorbed by the ozone and UVA and UVB rays ( longer uv rays than UVC penetrate the ozone and reach the Earth's surface?
 
Physics news on Phys.org
It's the molecules constituting the ozone that determines how much light is absorbed at different frequencies. Within UV region, the absorption mainly comes from O2 and O3.
 
Last edited:

Thread 'Maxwell stress tensor'

This is from Griffiths' Electrodynamics, 3rd edition, page 352. I am trying to calculate the divergence of the Maxwell stress tensor. The tensor is given as ##T_{ij} =\epsilon_0 (E_iE_j-\frac 1 2 \delta_{ij} E^2)+\frac 1 {\mu_0}(B_iB_j-\frac 1 2 \delta_{ij} B^2)##. To make things easier, I just want to focus on the part with the electrical field, i.e. I want to find the divergence of ##E_{ij}=E_iE_j-\frac 1 2 \delta_{ij}E^2##. In matrix form, this tensor should look like this...
View full post »
Thread 'Applying the Gauss (1835) formula for force between 2 parallel DC currents'

Thread 'Applying the Gauss (1835) formula for force between 2 parallel DC currents'

Please can anyone either:- (1) point me to a derivation of the perpendicular force (Fy) between two very long parallel wires carrying steady currents utilising the formula of Gauss for the force F along the line r between 2 charges? Or alternatively (2) point out where I have gone wrong in my method? I am having problems with calculating the direction and magnitude of the force as expected from modern (Biot-Savart-Maxwell-Lorentz) formula. Here is my method and results so far:- This...
View full post »

Similar threads

Medical Using Far-UVC Light To Kill Airborne Human Coronaviruses
Replies
33
Views
7K
I What Determines Whether Radiation Passes Through Materials?
Replies
5
Views
2K
Can radio waves pass through walls while visible light cannot?
Replies
1
Views
2K
Stars, Ozone, & Evolution of Complex Life
Replies
8
Views
6K
Why Did Earth's Early Oceans Have a Green Hue?
Replies
14
Views
6K
Trying to understand what happens when EMR goes through matter (or doesn't)
Replies
6
Views
5K
Questions about diodes, relativity, radiations
Replies
1
Views
5K
How is radio wave propagation modelled in seawater?
Replies
12
Views
10K
Did UV Radiation from the Sun Cause the Ordovician Extinction?
Replies
4
Views
6K
What colors and attributes could alien flora & fauna have?
Replies
15
Views
5K

Hot Threads

Recent Insights

Back
Top