- #1
UniPhysics90
- 16
- 0
I'm having a little trouble understanding this, mainly the way the maths behind it works. I can't find any kind of derivation on the internet which is 'simple' and at a level I can understand.
My understanding is that the photons from the Sun are absorbed by dust, so transferring momentum from the photon to the 'dust'
I know that
Flux of photons = L/4*pi*r2
I THINK that
Force on a spherical particle of radius a = (pi*a2)*flux*fraction absorbed*force due to a single photon
Is this correct? If it is, what is the force due to a single photon?
Thanks!
My understanding is that the photons from the Sun are absorbed by dust, so transferring momentum from the photon to the 'dust'
I know that
Flux of photons = L/4*pi*r2
I THINK that
Force on a spherical particle of radius a = (pi*a2)*flux*fraction absorbed*force due to a single photon
Is this correct? If it is, what is the force due to a single photon?
Thanks!