Speed of Light

The highest frequency electromagnetic waves are called gamma rays. The waves are emitted from nuclei .

It is the speed of neutrinos. Why they are faster than the speed of light? Ckeck results of recent LHC experiments.

A wave is traveling disturbance. Sound waves originate from a vibrating source, and are propagated as the vibrations are transmitted from particle to particle in the medium through which the sound wave is traveling. In a solid, the particles are spaced more closely together than in a gas or liquid, and so the collisions between the particles take less time to occur.

Basically its because Solid particles are always touching so a sound wave can travel over them quickly, but a gas particle is spcaed out from each other and it takes time for the particles to hit each other and pass the wave of sound.

Like waiting for a rock to jump on over a lake.

In a single homogeneous medium (electrical properties constant throughout

the medium), the speed of light is constant ... although less than its speed in

vacuum ... and the light does not bend. Bending (refraction) only occurs at the

boundary between different media in which the speeds are different, or in a single

medium whose properties change gradually (like the atmosphere).

The basic principles of RADAR are . . .

-- When radio waves encounter any change in the physical properties of the

medium through which they're moving, some of their energy is reflected from

the boundary.

-- The part of the energy that reflects back in the direction from which it came

can be detected at the location of the source, after a period of time that's directly

proportional to the distance between the source and the reflection point.

As the object is moved from beyond C towards F, the real image will first become larger, then reach its maximum size at C, and finally decrease in size until it becomes infinitely large at F. This change in size is due to the properties of convex lenses, which create real images that vary in size depending on the object's position relative to the lens.

It's really difficult to select one from the list of choices that you submitted

along with your question. We can only surmise that the speed of a 'following'

particle might be the same or less than that of a leading particle.

No, but the way that scientists measured the speed of light was having a group of scientists stand on two mountains within visibility, then one group flashes open a light or lantern and they count how long it takes to reach the other mountain using a stopwatch. Then they subtract human reaction time to the equation and do some simple equation using the time they counted to find the speed of light.

Light is made up of particles called photons, which are packets of energy. These photons have no mass but they do have momentum and behave both as particles and waves. So in a sense, light can be considered a form of particulate matter.

The speed of light was predicted, by the English physicist and mathematician

James Maxwell, before it was measured. His work showed that electric and

magnetic fields could combine to form electromagnetic waves, and his wave

equation showed what their speed would be. Other physicists soon succeeded

in creating electromagnetic waves in the laboratory, and detecting them all the

way across the room. It was suggested that light might also be an electromagnetic

wave. One way to settle the question would be to measure its speed, and see

whether it was anywhere near the speed predicted by Maxwell's electromagnetic

wave equations.

All of that has nothing to do with the wave/particle duality of light. There's no

decision to make, because light is both. If you design an experiment to look for

wave behavior, light has it. And if you design an experiment to look for particle

behavior, light has that too.

Light Emitting Diodes(LEDs) are the more most efficient light source because nearly 100% of the energy that is emitted by a LED is light, only a small proportion of the energy is heat. The high efficiency of LEDs has made them extremely popular in a lot of lighting apparatus ranging from basic torches to the back lighting of many flat panel displays ranging from all sizes.

The digital caliper would likely provide the most accurate measurement of the length of the cylinder due to its higher precision and ability to measure with smaller increments compared to a ruler or tape measure. Additionally, the digital caliper allows for more controlled and consistent measurements to be taken.

The color of the wavelength lambda = 595 nanometers is "orange-yellow" and not blue. The wavelength lambda = 595 nanometers equals the frequency f = 503,852,870,588,235 Hz. Blue light is between 490 and 450 nonometers. 1 nanometer = 1×10−9 meter. 595 nm = 0.000000595 meters. Scroll down to related links and look at "Radio and light waves in a vacuum".

The speed of light is about 300,000 miles per second in a vacuum. In air, it is about 90 kilometers per second slower. Group velocity experiments back it up.

Matter wave refers to the wave-like behavior exhibited by particles, such as electrons, due to their wave-particle duality as described by quantum mechanics. This concept suggests that all matter, in addition to its particle nature, can also exhibit wave-like properties, characterized by phenomena such as interference and diffraction. The wave-particle duality is a fundamental aspect of quantum theory.

The fudge factor in Albert Einstein's equation in 1917 may be due to Neutrinos which has greater speed than that of light. The difference between the speed of light and the Neutrinos may be the measure of the expansion of the universe which may ultimately cool down into ice one day.

The speed of light is significantly faster than the speed of sound in air. The speed of light in a vacuum is approximately 299,792 kilometers per second while the speed of sound in air is about 343 meters per second. This means that light travels almost a million times faster than sound through air.

The speed of light in a material like gold is slower than in a vacuum, as light waves interact with the atoms of the material. In gold, the speed of light is approximately 0.63 times the speed of light in a vacuum.

His two observers were so close that the time it took for light to go from one to another and back again was too small to be measured with the clocks that he had. Even if he had observers 15,000 kilometers apart, the result would have been a time change of .1 second, too small to be accurately measured with the water clocks available to Galileo.

Anything that moves is faster than the processing speed of the subconscious mind,

because the processing by the subconscious mind doesn't cover any distance. Your

question involves a subtle equivocation between two different uses of the word

"speed" that are really not comparable.

But we can still appear to answer it, albeit indirectly and somewhat evasively, by

pointing out that nothing can exceed the speed of light.

The speed of light is a number.

It was a theory before it was measured. After it was measured, and the prediction

was found to be correct, it was no longer a theory nor a hypothesis. It became a

"physical constant".

Some of the most popular units of speed are

-- miles per hour

-- feet per second

-- kilometers per hour.

But (any unit of length or distance) divided by (any unit of time) is a

perfectly good unit of speed, and armed with that knowledge, you can

easily make up your own, to amuse and astound your friends with.

Here are some:

-- meters per minute

-- furlongs per fortnight

-- miles per month

-- smoots per century

-- Indy-laps per day

-- yards per yocto-week

Observations of Jupiter's moons provided the first real evidence that light had a speed and wasn't instantaneous. Essentially, the orbit of Jupiter's moons was known fairly accurately over the short term, but over longer time periods (a few months) the moons appeared to lag behind or speed ahead of their predicted positions. Eventually it was realized that this was because the Earth-Jupiter distance changes as they orbit the Sun, and the difference was due to the extra time the light required to reach us when the distance was further.