Speed of Light

speed does not have any symbol

if you are talking about velcity then v,acceleration-a

s is used as a symbol but it is generally for height.

Yes, gamma rays travel at the speed of light, which is approximately 299,792 kilometers per second in a vacuum. This is because gamma rays are a form of electromagnetic radiation, like visible light and radio waves, and all forms of electromagnetic radiation travel at the speed of light in a vacuum.

The famous equation is basically saying that mass is just a condensed form of energy. The 'c' part of the equation (the speed of light) is just the exchange rate (so to speak). For example, if we want to know how much energy we could make if we completely annihilated 1 kg of a substance, we can substitute our values into his equation. e=mc^2 e= 1 (c^2) e=c^2.

So in 1kg of a substance, there are c squared joules of energy in it. This is a huge number, around 9*10^16. This number is 9 with 15 zeros after it!. So, why don't we use it to power nuclear stations? The reason is because one of the easiest ways of completely annihilating something is by mixing it with it's antimatter counterpart, which is unfortunately immensely difficult to synthesise in practical quantities.

Cooling rate refers to the speed at which a material loses heat during the cooling process. It can be measured by monitoring the temperature of the material over time using a thermometer or sensors. The cooling rate is influenced by factors such as the material's thermal conductivity, its surface area exposed to the surrounding environment, and the temperature difference between the material and its surroundings.

For two differently moving frames of reference to measure the same speed of light as required by standard Maxwell electrodynamics, time and the length of objects must change to accommodate for the difference they should see by traveling at different speeds/directions. The extra mass comes from the fact that nothing can reach the speed of light, and so if y

Objects which do not emit their own light can still reflect light that illuminates them. There are also instruments that can be used to detect radiation in wavelengths that the human eye does not see.

The speed of lightning is somewhere between that of light and sound which is why most scientists would agree that the speed of light and the speed of sound make a good comparison to that of lightning and electricity.

Light in a vacuum travels at 300,000 km per second. It will take distance divided by speed time to travel. Or 30 million thousand km divided by 300 thousand km/s = 100 000 seconds. This is 27.8 hours.

When light with wavelength of 589 nanometers moves through water at the

temperature of 20° C, its speed is 75% of the speed of light in vacuum.

Radio waves have wavelengths that can vary from hundreds of meters to as small as a few millimeters. For a typical adult human, who is around 1.7 meters tall, the closest match in terms of wavelength would likely be in the lower frequency range of radio waves, such as Medium Frequency (MF) or Long Wave (LW) radio waves.

When Mars is as close to Earth as it can possibly be, and if it were possible to travel

in a straight line all the way there, the trip would take you about 72 million kilometers.

The distance would not depend on your speed.

The speed of light in a vacuum is approximately 299,792,458 meters per second. To convert this to centimeters per hour, multiply by 3600 (the number of seconds in an hour) and then multiply by 100 (to convert meters to centimeters). The speed of light in centimeters per hour is roughly 10792528480000 cm/hr.

The speed of light depends on the electrical properties of whatever substance

it's in. It has nothing to do with what substance it used to be in before, or what

substance it's going into next. -- If it goes from air into vacuum, its speed increases.

-- If it goes from air into water, its speed decreases.

-- If it goes from water into air, its speed increases.

-- If it goes from water into diamond or jello, its speed decreases.

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.

The speed of light in a vacuum is approximately 299,792 kilometers per second.

All colors of light in white light travel at the same speed in a vacuum, which is the speed of light (approximately 299,792 kilometers per second). Thus, there isn't a specific monochromatic constituent that is faster than the others.

To determine if red and blue light travel at the same speed in plastic, one could shine both colors of light through the plastic at the same angle and measure the time it takes for each color to travel a set distance. If the times are equal, the speeds are the same. However, if there are differences in the times taken, it suggests that red and blue light have different speeds within the plastic.

When light enters from a denser medium to a rarer medium, the phase change it experiences is a shift towards a longer wavelength, known as refraction. This shift in phase is due to the change in the speed of light as it travels through the different mediums.

If you are asking how far light travels ( in a vacuum ) in a year...... it travels 9,460,730,472,580.8 km. at a speed of 299,792,458 metres/second.

The speed of light is 299,792,458 m/s. The speed of sound varies. But at sea level, it is 340.29 m/s.

299,792,458 m/s + 340.29 m/s = 299,792,798.29 m/s.

Note: m/s = meters per second

This is to maximize the effect of diffraction. The wavelength of the photon can be regarded as its 'size' . If it is too large then the slit is just to small for it and most of the photons will be absorbed or reflected. If it is far too small then the slit, in comparison, will be very large so most photons do not even notice its presence and will just continue on their merry way without interacting with it.

Yes, phase velocity can exceed the speed of light in certain mediums. This is known as superluminal phase velocity. However, this does not violate the principle of causality or the speed of light in vacuum as it is the group velocity, rather than the phase velocity, that carries the information in a wave.

Light always travels at the speed of light, although

that's a different number in different substances.

No, the speed of light in a vacuum is constant and is approximately 299,792 kilometers per second. This means that light always travels at this speed regardless of the observer's motion or the source of the light.