Refraction is the bending of the rays of light when it travels from one medium to another... For refraction to occur there should be some difference in the refractive index of the materials.... Refraction can also occur in Opaque medium........
A conductor is an object (usually a solid) that allows heat or electricity to pass through it easily by the process of conduction, which is a method of heat/electricity transfer in which heat/electricity travels through a solid material without actually causing movement of the medium. Copper, aluminium, and pretty much all metals are good conductors. Water is a conductor of electricity but an insulator of heat. An insulator is the opposite of a conductor, and absorbs heat/electricity rather than channeling it. Plastic is an insulator of both heat and electricity. Wood, styrofoam and vacuum (dead air, like in space) are also heat insulators.
In denser medium,particles of matter are very close to each other.whereas,in rarer medium,particles of the medium are slightly farther apart.
temperature,medium and density
No medium is required by electromagnetic waves to traverse.
Information can be spread quickly
waves are easily travel in medium.....
Baseband
it allows sound to go through it
Charcoal and chalks are two that easily smudge, as the powder is not held within a binding medium, such as oil-paints and watercolours.
medium of exchange
medium of exchange
medium of exchange
air, when compared to water
A medium in a bibliography refers to the format in which a source is presented, such as print, online, or DVD. Including the medium helps readers locate the source easily.
A form of transmission that allows multiple signals to travel simultaneously over one medium is known as multiplexing
it only allows fungi to grow on the medium, and nothing else. so it selects for fungi.