sound cannot travel through a vacum
Within the same medium, all electromagnetic waves travel at the same speed.
In some fairly recent experiments physicists have claimed to able to stop light entirely in super-cooled sodium.
Heat and light energy travel through space and matter
by air
No, light is at its fastest in a vacuum.
sound cannot travel through a vacum
Within the same medium, all electromagnetic waves travel at the same speed.
A planet travels slowest at its apogee.
In some fairly recent experiments physicists have claimed to able to stop light entirely in super-cooled sodium.
Heat and light energy travel through space and matter
light waves travel through a matter, such as air water and others
by air
solid
Light travels in the air phase of matter compared to the liquids and solids.
NO some waves like sound require matter to travel whereas light waves can travel in vacuum.
It moves it's slowest in the solid state