Any electromagnetic wave that can propagate through water at all
will do so at a lower speed than when it's in air.
Light travels fastest through vacuum.
it travels faster through air.
liquid
It doesn't travel faster through a vacuum. In our Universe there is no such thing as empty space.
Any eletromagnetic wave. Light, visible or non visible.
neither, both travel at the same speed: c
An opaqe object. NO light can travel through it at all.
No.
Light travels much faster than sound, through wood.
Visible light and x-rays are both forms of electromagnetic radiation, and do not require a medium to travel through.
Light travels fastest through vacuum.
Air.
it travels faster through air.
liquid
liquid
Light generally doesn't travel faster through solids than through gases. Sound does, but not light.
Yes! Light travels through any material that does not completely absorb it. Visible light can only travel through materials that are called either transparent or translucent. Visible light travels through glass all the time. Visible light also travels through your cornea and the gel-like material that is in your eyeball. There are other types of light than visible light, such as ultraviolet (UV). UV is light that has more energy than visible light. This is the type of light that can give you a sunburn. There are even more energetic types of light like X-rays. They go through lots of material that visible light can't -- like skin and organs, but they do not go through bones or teeth very well.