Gamma waves
x-rays
x rays
x-rays
x-rays
What waves are used to penetrate solids and are used in doctors offices
Ex-rays are and are used in doctors offices and airports! and sometimes to see how big your feet are! ;)
x-rays.
They have low velocity
Sound can penetrate those mediums.
Because they have a very small mass.
Gamma rays are gamma rays are gamma rays.
Also called surface-active agent, it is a substance such as a detergent, that can reduce the surface tension of a liquid and thus allow it to foam or penetrate solids; a wetting agent