"Color" is a property for part of the electromagnetic spectrum. It doesn't make sense for other types of radiation, including gravitational waves.
It is not related to the colour of my eyes.
No. Solar energy comes in the form of electromagnetic radiation.
A black hole exerts such a strong gravitational pull that not even electromagnetic radiation, including visible light, can escape its grasp. The intense gravitational force of a black hole warps spacetime to create a region from which nothing, not even light, can escape.
Dark matter is matter that is inferred to exist from gravitational effects on visible matter and background radiation, but is undetectable by emitted or scattered electromagnetic radiation.
because its a good emitter/absorber of radiation
Uranium glass emits radiation in green color, making it popular for its unique glow under UV light.
Alpha radiation does not have a colour. In order for something to have a colour, it must emit rays of visible light. Alpha radiation and light are two different things which have little to do with each other.
PVC (polyvinyl chloride) does not absorb radiation because it is a non-polar polymer with a low hydrogen content. This makes it transparent to most forms of radiation, including visible light and electromagnetic radiation.
No. Gravitation is not electromagnetic radiation, and no quantum (elementary particle) of gravitation has been found yet. If the speed of propagation of gravitation is not infinite, that hasn't yet been measured either.
No, the Earth's gravitational field does not protect us from the sun. The gravitational pull between the Earth and sun keeps Earth in orbit, but it does not provide any physical protection from the sun's radiation or heat. The Earth's atmosphere and magnetic field help shield us from harmful solar radiation.
a region of space having a gravitational field so intense that no matter or radiation can escape.
Robert A. Managan has written: 'On the secular instability of axisymmetric rotating stars to gravitational radiation reaction'