Force of Electromagnetic Radiation and Visible Light

In summary, electromagnetic radiation is a form of energy that travels through space in the form of waves, ranging from long radio waves to short gamma rays. It interacts with matter by transferring energy, and can be classified as ionizing or non-ionizing depending on its energy level. Visible light is a type of electromagnetic radiation that is visible to the human eye and has wavelengths between 400-700 nanometers. The intensity of electromagnetic radiation is measured in watts per square meter (W/m²).
  • #1
pschwon731
1
0
Is there an equation for force due to electromagnetic radiation?

For example, is there a force due to orange light?
 
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  • #2
welcome to PF;
Is there an equation for force due to electromagnetic radiation?
yes: F=dp/dt

Photons carry momentum so you can use conservation of momentum and the brightness of the light to figure the force. Generally, light illuminates an area so you will be working out force per unit area.
- look up "light pressure"
 
  • #3
Light can also carry angular momentum; additionally, linearly polarized light can exert a torque on a birefringent material.
 

1. What is electromagnetic radiation?

Electromagnetic radiation is a type of energy that is transmitted through space in the form of waves. It includes a wide range of wavelengths, from very long radio waves to very short gamma rays.

2. How does electromagnetic radiation interact with matter?

Electromagnetic radiation interacts with matter through the transfer of energy. When the energy of the radiation matches the energy of electrons in the matter, the radiation can be absorbed and cause changes in the matter.

3. What is the difference between ionizing and non-ionizing electromagnetic radiation?

Ionizing radiation has enough energy to remove electrons from atoms or molecules, which can cause damage to living cells. Non-ionizing radiation does not have enough energy to cause this type of damage.

4. What is visible light?

Visible light is a type of electromagnetic radiation that is visible to the human eye. It has wavelengths ranging from approximately 400 to 700 nanometers and is responsible for the colors we see in the world around us.

5. How is the intensity of electromagnetic radiation measured?

The intensity of electromagnetic radiation is measured in units called watts per square meter (W/m²). This measures the amount of energy that is passing through a specific area in a given amount of time.

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