# Force of Electromagnetic Radiation and Visible Light

Is there an equation for force due to electromagnetic radiation?

For example, is there a force due to orange light?

Simon Bridge
Homework Helper
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"

Andy Resnick