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The velocity of light and all electromagnetic radiation is determined by two properties of space. One is the electrical property which is permittivity and the other is the magnetic property which is permeability. Their values were determined more than 150 years ago by the great scientist Jame Clerk Maxwell. They are not constant in value, but vary based on the material in which they are located. In most cases they diminish the velocity, but in a few they increase it. If the value of either or both of these properties can be modified, then the velocity of light can also be modified.
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Why do we need to study light?
Light is a kind of energy which is sensed by eyes. Light is found to be electromagnetic wave whose velocity through space is decided by the magnetic and electric properties such magnetic permeability and electric permittivity. But the beauty is that the very space is relative.
Which of these is constant for ALL types of electromagnetic radiation in a vacuum?
Answer = Velocity Velocity is the speed of light and, the speed of light, is a constant among Electromagnetic Radiation in the vacuum of space.
In vacuum the velocity of light depends on?
The electrical characteristics of free space, and the direction the source is pointing.
How are the Distances between different objects in space measured?
they use light-years to determine the space between objects in space
Does light require a medium to travel through?
No, light doesn't need a physical medium, like air, to travel. As a matter of fact, light travels the fastest it possibly can, 2.98 * 10^8 meters per second, in a vacuum, like space. If light couldn't travel without a medium, then Earth wouldn't receive any light from the Sun.
Why do we need to study light?
Light is a kind of energy which is sensed by eyes. Light is found to be electromagnetic wave whose velocity through space is decided by the magnetic and electric properties such magnetic permeability and electric permittivity. But the beauty is that the very space is relative.
Why is light important to learning about space?
Light is a measurable medium which passes through space. It can further be broken into different components and they can be used to calculate distance, velocity, frequencies etc. It can be used to determine size of planets, galaxies and their distance from us.
Which of these is constant for ALL types of electromagnetic radiation in a vacuum?
Answer = Velocity Velocity is the speed of light and, the speed of light, is a constant among Electromagnetic Radiation in the vacuum of space.
In vacuum the velocity of light depends on?
The electrical characteristics of free space, and the direction the source is pointing.
What is the velocity of light in space compared to that in a denser medium?
The speed of light and all other electromagnetic wavelengths in vacuum (empty space) is higher than in any other medium.
How are the Distances between different objects in space measured?
they use light-years to determine the space between objects in space
Is space purple?
Space is defined by its dimensions, properties, and contents. If its contents or properties (or even its dimensions) produce a purple colour on the application of light, either by scattering of red and blue frequencies, or by absorption of green, it could be considered 'purple space'. A room with purple wallpaper, for instance, is a space that is purple. Is the vacuum of outer space purple? Not really- it lacks colour generally until you shove something purple into it and shine a light upon it consisting of the requisite frequencies, or something white with purple light... or unless you can manipulate its properties to influence the frequency/absorption of light passing through it... or unless it has purple curtains...
Does light require a medium to travel through?
No, light doesn't need a physical medium, like air, to travel. As a matter of fact, light travels the fastest it possibly can, 2.98 * 10^8 meters per second, in a vacuum, like space. If light couldn't travel without a medium, then Earth wouldn't receive any light from the Sun.
What is the velocity of sound in space?
Sound requires the physical compression and expansion of molecules to be transmitted, it is not electromagnetic energy like light and microwaves. It therefore cannot be transmitted through a vacuum so it cannot have a velocity in space
What color has the maximum velocity?
In empty space, light of different colors moves at the same speed - about 300,000 km/sec.
Does light take time to travel through space?
The velocity of light in vacuum is 299,792,458km/s, for daily calculation it's considered as 300000km/s, so put the distance and "C"(velocity of light) in speed and distance equation and you will get the answer.[time=distance/speed]"atul ashish"
What are the properties of the fastest wave travels?
The fastest traveling wave is the transverse wave of electromagnetic radiation. Along the radiating antenna, it travels at the speed of light. There are two velocity components in space: one is the radial component, which also travels at the speed of light. The other is the transverse velocity component, which increases with distance. In the far, far field, it is much greater than the speed of light. The characteristics of the antenna electromagnetic dynamic field waves were plotted directly from the well known radiation equation,
