# Radiation pressure at a surface which is perfectly refracting

Radiation pressure at perfectly reflecting surface = 2I/c

Radiation pressure at perfectly absorbing surface = I/c

What will be the radiation pressure at a perfectly refracting surface? Will it be the same as that of perfectly absorbing surface and why?

• What is a perfectly refracting surface? Mar 20 '19 at 3:55
• you are not giving a link for your assertions, and googling comes up with very complicated behaviors , not simple fomulae. example ;osapublishing.org/DirectPDFAccess/… Mar 20 '19 at 5:49