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What sensitive material is used when the photocell used for a visible light?
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Can light travel through matter?
Yes! Light travels through any material that does not completely absorb it. Visible light can only travel through materials that are called either transparent or translucent. Visible light travels through glass all the time. Visible light also travels through your cornea and the gel-like material that is in your eyeball. There are other types of light than visible light, such as ultraviolet (UV). UV is light that has more energy than visible light. This is the type of light that can give you a sunburn. There are even more energetic types of light like X-rays. They go through lots of material that visible light can't -- like skin and organs, but they do not go through bones or teeth very well.
What color of visible light has the fastest velocity?
As long as they're all traveling through the same material, all colors of visible light have virtually identical speed.
How does the wavelength of gamma rays compare to the wavelength of visible light?
It is electromagnetic radiation, which is the same in composition as visible light but has a much higher frequency/shorter wavelength, and will do damage to any biological material it passes through. Both travel at the same speed ('velocity of light') but gamma radiation can penetrate material opaque to visible light.
What is a lumen?
a measurement of the amount of visible light.AnswerA lumen is the photometric SI unit for luminous flux -i.e. the rate at which an object emits visible light. By 'visible light', we mean electromagnetic energy perceived by the human eye, and the lumen is based on the frequency of green light, to which the human eye is most sensitive.
Why can you see visible light waves but not other electromagnetic waves?
Visible light consists of the band of wavelengths to which the structure of the human eye is sensitive. Radiation outside of that band may enter the eye, but there's nothing in there that responds to it, so the brain remains unaware of it.
How does a photocell convert light into electrical energy?
Light heats a photocell, and the difference in temperature creates an electric current(:
Can humans detect visible light?
Answer is simply yes , human eyes is only sensitive to the visible light at the electromagnetic spectrum , however there is a different in wavelength and the frequency depending on the color of the visible light
What does photocell mean?
light of a cell
What are advantages of visible light?
The advantage of visible light is that you can see it. Also, because our eyes are sensitive to light you can see colors. Violet has the shortest wavelength and red has the longest. Visible light is the only EM waves that you can see.
What is an example of material that blocks visible light?
blackplactic
What absobs energy from visible light?
A dark material.
When light strikes a photocell does the resistance increase or decrease?
When light strikes a photocell, the resistance decreases, allowing current to flow more freely.
What materials do you use to build a model?
light-sensitive material
How is visible light different from other electomagnetic waves?
It's composed of wavelengths to which the eye is sensitive.
What material does visible light not travel through?
An opaqe object. NO light can travel through it at all.
What is the name of the lightproof box on which images are recorded on a material sensitive to light?
The answer is........... I am awesome
How does photocell work?
Best Answer - Chosen by VotersActually "photocell" can refer to lots of different things and you are talking about two of them! Let's agree that photocell means "thing that is sensitive to light". 1) A light dependent resistor uses a chemical (typically a Cadmium compound like cadmium sulfide) that changes resistance when exposed to light. It doesn't convert light to current. To use one, you have to provide voltage and measure the change in current as the resistance changes (or you could provide a constant current and watch the voltage change; same thing).2) A silicon photocell (or solar cell) generates electricity from light. Photons (light particles) hit the silicon and cause electrons to flow out of the silicon (a little more complicated, but you asked for simple).3) A photo transistor uses light to turn on a transistor. Actually all "regular" transistors are light sensitive. A photo transistor is made to be sensitive and has a window in the can to let the light in.4) A photo diode is sort of like a photo transistor but used a diode.That's all from memory, but I think that about wraps it up. Some of these things are really the same things packaged up or specialized for a certain task. But a light dependent resistor is not an electric
