Marshal McLuhan I believe.
Medium is of two type One is material medium and other one is non-material Material medium are air medium, water medium etc Non-material medium is vacuum or free space If material medium is essential for the propagation of the wave then that wave is named as mechanical wave. Example: sound waves If such a material medium is not a must then the wave is said to be Electro magentic wave. Example: Light waves.
Nothing special. But when light travels from one medium to another (from air to water for example) it is refracted. One answerer said a rainbow. A rainbow is caused by the different wavelengths (colors) of light are refracted at slightly different angles, so that we see different colors appearing at different positions.
refracted. Refraction occurs when light waves pass from one medium to another, causing a change in speed and direction. This bending of light is a result of the change in its speed as it moves through different mediums.
Objects that reflect light are said to be "reflective", objects that scatter light are said to be "diffusive", and objects that transmit light are said to be "transparent" or "translucent".
The simple answer is black. However, this is true only if the colour of said object is pure blue; If it has even the slightest tinge of red in it, you will see a very dark shade of red.
A pure substance is an element or a compound.
Isaac Newton proposed that the heavenly bodies were composed of matter and not pure orbs of light. His work on the laws of motion and universal gravitation significantly influenced our understanding of the physical world.
The speed of light is a set speed at which all electromagnetic waves travel at in a vacuum. It is 3*10^8 meters/second... That being said, when light, or any other EM wave, travels through a medium it will slow down. Every material has an index of refraction which is the ratio of the speed at which light travels in a vacuum, to the the speed it travels in that material. If you know the index of refraction, you can use Snell's law to determine the speed light will travel through a specific medium. Every medium is different, however a rule of thumb is the denser the medium, the slower light will travel through it. For example, light travels faster in the atmoshpere than it does in water.
Medium is of two type One is material medium and other one is non-material Material medium are air medium, water medium etc Non-material medium is vacuum or free space If material medium is essential for the propagation of the wave then that wave is named as mechanical wave. Example: sound waves If such a material medium is not a must then the wave is said to be Electro magentic wave. Example: Light waves.
Nothing special. But when light travels from one medium to another (from air to water for example) it is refracted. One answerer said a rainbow. A rainbow is caused by the different wavelengths (colors) of light are refracted at slightly different angles, so that we see different colors appearing at different positions.
In wave motion, the media are said to be liquid and solid according to the states of media themselves, that is, if a medium is in solid state then the medium is said to be solid medium and if the medium is in liquid state, then the medium is said to be liquid medium.
The Photophone, also known as a radiophone, was invented jointly by Alexander Graham BellHe said it was his greatest invention.It is a means of communication...through the transmission of light.
refracted. Refraction occurs when light waves pass from one medium to another, causing a change in speed and direction. This bending of light is a result of the change in its speed as it moves through different mediums.
Pure.
Objects that reflect light are said to be "reflective", objects that scatter light are said to be "diffusive", and objects that transmit light are said to be "transparent" or "translucent".
Einstein's famous equation, E=mc2, basically means that energy and mass are interchangeable - that under the right conditions, mass can turn into pure energy, and energy can turn into mass. So, in essence, it can be said that matter can turn into pure energy if it is travelling at the speed of light.
Supposedly God said "Let there be light"