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Gamma radiation
Most easily?With an attracting or repelling field, a vacuum.In solids or liquids, in conductors.
alpha radiation :)
Gamma Radiation penetrates farther than x-rays, which are partly absorbed by thick material such as bones.
Alpha radiation is stopped easily by thin substances such as a sheet of paper or the skin. It is because of this that alpha radiation is generally non-harmful to humans.
Gamma radiation
Gas is much less dense than liquids or solids, which means that it has fewer particles (the particles generally being atoms or molecules) per unit volume, than there are in the denser materials. Hence, if something is travelling through a gas it is not going to hit as many particles a it would if it were travelling through a liquid or solid. And any time a photon hits another particle, it may be absorbed, or reflected, or defelcted in some manner by that particle.
Radiation can pass easily through space. It is the earth's atmosphere that protects us from dangerous levels.
Most easily?With an attracting or repelling field, a vacuum.In solids or liquids, in conductors.
For conduction and convection we need a material medium. But for radiation such a meaterial medium is not necessary. So in free space radiation can pass through easily.
Liquids do, but solids do not.
infrared light
alpha radiation :)
Gamma Radiation penetrates farther than x-rays, which are partly absorbed by thick material such as bones.
No, you can't compress liquids easily. You can compress them a little bit, but thats all.
I don't know because i'm also asking
Yes, easily. All types of electro-magnetic radiation - light, radio, radar, x-ray etc - pass very easily through vacuum.