We know that ultraviolet light, X-rays and gamma rays have wavelengths shorter than visible light.

it appears black

Yes, Of Course The lifetime depends on the wattage. The wattage is the amount of Power the light bulb uses, and the life time depends on the power. Thank you

All travel at the same speed through a vacuum

Visible light is a type of electromagnetic wave.

No.

We call it the "speed of light", but it's also the speed of radio, X-rays, heat,

ultraviolet, microwave, gamma rays, etc, and all forms of electromagnetic radiation travel at the same speed, as long as they're in the same medium (vacuum or material substance).

Yes, radio waves have a longer wavelength than visible light. They are part of the electromagnetic spectrum.

Almost. They are shorter than radio waves, and they are the next order up from radio waves, but they have different properties in terms of interaction with materials. So right idea, wrong classification.

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Both beams seem to have wave/particle duality.

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If we consider in a simple way the think, a focus electron beam behave somehow like a light beam even if it is a particle beam. Thus diffraction figures can be observed on a screen if the electron beam passes through a very small gap.

The great difference is that the equivalent wavelength of the electron beam seems to be very small with respect to light beam. The observed wavelength of an electron beam depends on electrons energy, being in general of the order of 1 nm (one meter part out of one billion) while green light has a wavelength of the order of 540 nm.

If we look more in deep the phenomenon, in quantum mechanics both a light beam and an electron beam are particle beams, being photons the light particles. They are in any case particle that do not resemble small rigid balls, but having quite exotic properties, like generating interference and, in case of photons, to be at light speed in any possible situation.

The basic difference is that electrons are fermions, with spin equal to 0.5 and a finite rest mass, while photons are bosons, with zero spin and zero rest mass. This difference causes the macroscopic difference in their behaviours.

A stained glass window is a substance that transmits different colors oflight

Visible light imagery only reveals what is reflected from the Earth's surface and atmosphere.

Infrared imagery detects the differences in thermal energy, which are used to map either cloud cover or surface temperatures. They allow meteorologists to determine the temperature of a cloud.

What they have in common:

Weather satellites used both of these equipment to observe the atmosphere.

All the sun's rays penetrate water, but each color penetrates to a different depth. The colors at the upper end of the light spectrum, especially the UV (ultraviolet) that causes tanning, penetrate deepest. The UV portion of the sun's light can penetrate into clear water for a hundred feet or more at midday. The safest way to avoid overexposure is to remember that if you can see the sunlight, it may cause sunburn, and to limit exposure accordingly or perhaps wear a T-shirt or wet-suit.

Neither is nesesarily longer a wave can go on forever. Visible light is more reflective than infared light so it will last longer. If you are talking about wavelength, infared lights wavelength is longer.

That it is a part of the electromagnetic spectrum

In a well designed house the lights are not connected to the same circuit as an appliance. If by going out you are saying that a breaker trips, then your appliances and lights combined are exceeding the rating of the breaker. You either need to rewire and balance the loads better or plug high current appliances into different outlets on another breaker. If you are not tripping breakers, but lights are just dimming you have a bigger problem with inadequate current supplying your house.

Violet (purple) is the highest energy color in the visible spectrum. It has a wavelength of about 400nm (4x10-8m), the lowest of all visible light.

nit

ICE. You are standing behind ICE wall. I can see you but I can not use a infrared camera for taking your photo. For that matter, ordinary glass does a pretty good job of blocking certain wavelengths of infrared.

High-energy photons correspond to short-wavelength light while low-energy photons correspond to long-wavelength light.

In short, the answer is red.

For short-wavelengths (high energy photons) it would appear blue.

RED

Humphrey Davy created the electric arc in 1800 (no bulb). Joseph Wilson Swan created the carbon filament which produced light in 1878. Charles Francis Brush used Carbon Arc lighting to illuminate a public square in 1877. In 1879 Thomas Alva Edison put it all together in an oxygen free bulb that was "almost" perfect. Lewis Howard Latimer who had been on Edison's team invented an improved carbon filament in 1881 and a unique manufacturing process that produced the filament in 1882. In 1903, Willis R. Whitney solved the problem of darkening the inside of the bulb with a coating of the filament. The light bulb as we know it involved exchanging the the carbon filament for one made of tungsten invented by William David Coolidge in 1910 and the incadescent bulb lit up the world.

Let's examine what it means when a bulb is 100W rather than 60W.

I'm assuming that you meant to state that they are 120V bulbs being connected to a 240V circuit1.

With the same voltage on each, and because power is voltage times current, the current must be greater in a 100W bulb than in a 60W bulb.

Since a incandescent bulb is a linear load, if you double the voltage then you double the current2. So the current through the 100W bulb is still greater than through the 60W bulb.

Or you may analyze it a bit more. With both on 120V, for more current to flow in the 100W bulb, the resistance of it must be less than that of the 60W bulb. So you may generalize that under any voltage (same voltage applied to each), the 100W bulb will always have more current through it than the 60W bulb.

1Actually, if they are 120V bulbs in a 240V circuit, there is a high probability that they will blow out. But before they do, this is what will happen.

2Well, slightly less than double, because the temperature coefficient on the filament is positive, so the hotter it is, the greater the resistance. Although this may seem nonlinear, a light bulb or other temperature sensitive resistive element is still defined as linear if over the short term it obeys Ohms law at any instant of the waveform.

The current in the 100 watt bulb will be greater. Power is current times voltage, so current is power divided by voltage. Voltage is the same is both cases of this question, so current is proportional to power at 240V.

yes,you should be able to...i think why dont you test it?