Eli5: When you shine a bright light under your fingertip, making your finger orange, is the light actually illuminating through the entirety of your finger?

Question

Eli5: When you shine a bright light under your fingertip, making your finger orange, is the light actually illuminating through the entirety of your finger?

In: Physics

Answer 1

Yes, it is–well, around the fleshy part, at any rate. The bone would block the light, but the skin and flesh diffuse it around so you can’t see a shadow of the bone.