If you're asking for what light cannot touch, then there is nothing. Other than air, light acts on everything. If light did not reflect off of objects, they would be invisible.
EDIT: Visible light cannot penetrate a mirror. If the mirror is of suitable quality, most of the light should be reflected, with the remainder being absorbed.
EDIT: light acts on air, it does not act on a vacuum, it travels straight thru it. with air however, light is difracted
i got a bit confused by dis question, but light can't travel through opaque stuff. Peace
A black hole. Anything that doesn't absorb light, light cant travel through.
no
Transparent materials will always allow light to pass through, translucent materials will allow light to pass through as well but the light rays will be scattered. Opaque materials will not allow any light to pass through.
table glass soap
That light cannot pass through some materials, and that this leads to the formation of shadows.
Insulators
Light cannot pass through an opaque material.
Transparent materials will always allow light to pass through, translucent materials will allow light to pass through as well but the light rays will be scattered. Opaque materials will not allow any light to pass through.
Transparent materials allow light to freely pass through them. Translucent materials also allow light to pass through them, but change the colour of the light.
Opaque materials do not allow light to pass through them.
Translucent materials allow some light to pass through. Transparent materials allow most or all light to pass through.
They reflect or absorb light and thus do not allow light to pass through.
light
opaque
opaque
Opaque.
Materials are classified into three catagories firstly opaque through which light can not pass,secondly transparent through which light can pass and lastly translucent through light light passes partially.
Translucent materials allows light to pass through it. Windows is a translucent material because it allows light to pass through it
Translucent materials allows light to pass through it. Windows is a translucent material because it allows light to pass through it