An astrophysicist is analysing radiation emitted from a distant stellar remnant. The observatory detects radio waves, ultraviolet radiation, and gamma rays coming from the source.
State two similarities in the fundamental physical properties of these three types of radiation.
On Earth, protective measures must be taken when handling artificial sources of ultraviolet radiation and gamma rays. State one specific biological hazard associated with exposure to each of these types of radiation.
The astrophysicist also observes visible light from the star. Identify which of the seven colours of the visible spectrum has the longest wavelength.
