Does electromagnetic radiation react to anti-matter in a similar or different way to normal matter? Would light be

Question: Does electromagnetic radiation react to anti-matter in a similar or different way to normal matter? Would light be reflected by antimatter, or would it annihilate?
- Keywords:
  antimatter,
  electromagnetic,
  radiation
Asked by Nathan to Jackie on 19 Mar 2015.
- Jaclyn Bell answered on 19 Mar 2015:
  
  It would react in the same way. As for light, I think it would be reflected. This is assuming by antimatter you are talking about positrons being the antimatter of electrons, etc?

Question: Does electromagnetic radiation react to anti-matter in a similar or different way to normal matter? Would light be reflected by antimatter, or would it annihilate?