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A flashlight may not light if there is no energy source or in this case battery.

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After taking 15 index cards and piling them on top of a flashlight while in a dark room does the light stay dim after so long?

The light stay dim long as the cards is piled on top of the flash light. Human eye can adjust to see better in the dark and it might cause the thinking that after dimming by piling card over flash light for a while and it go brighter a little.


Does the amount of light increase if more and more flashlight beams are combined into one beam?

I'm not sure what you mean by 'the amount of light', or how you might plan to 'combine' several beams. When more flashlights shine on a surface, the intensity of illumination on the surface increases.


How do you make glowing water without the black light?

well you have to have a blue light, like in a flashlight that is really bright, that might work and if u have a light up pen, u can use that and a uv (NOT uvb light) light will work.i hope tis help, oh and a girl use her cellphone light and sshe said it woked pefectly


Explain how polarized light is different from non-polarized light.?

In polarized light, the plane of the electrical (and magnetic) oscillations is the same for all photons (particles of light). For example, if the light is traveling away from you, all photons might have electrical oscillations that go up and down.


How does refraction can separate white light into color?

The reason white light is separated into colors is because light of different colors have slightly different indices of refraction. Thus, for example, red light might be bent a little bit more than blue light.

Related Questions

How do you make your keyboard letters light up at might when you caint see them?

A flashlight


Is cari Peugeot pregnant?

That might explain her stomach, but what would explain the reason for the enlarged rear end?


Why would a flashlight might not light?

A flashlight might not light due to dead or improperly inserted batteries, a faulty bulb, a loose connection, or a damaged switch. Checking these components and ensuring they are functioning properly should resolve the issue.


Why did my flashlight turn blue?

Your flashlight may have turned blue due to a few possible reasons. One common explanation is that it uses a blue LED bulb, which can give off a blue light. Alternatively, if the flashlight has a colored lens or filter, it could also emit a blue hue. Lastly, if the flashlight is malfunctioning or the batteries are low, it might produce an unusual color of light.


Why does the Brightness of the Light Emitted by a Flashlight Decreases as the Flashlight moves farther away from you?

Because the constant amount of light that the flashlight produces is spread outover a larger area when it's farther away, so the intensity at every point is less. The flashlight might attack you, so be careful. Also, if your earlobes are out of control, tape them down. Please.The torch light penetrate each so much light is not parallel, with the light propagation distance become far, spacing between the light light is more and more big, making smaller according to the density of light in the distance.


Does a flashlight emit one beam or many beams of light?

Depends on the flashlight, some have many bulbs which would probably shine brighter, or just one big bulb which depending on the bulb, might shine less bright.


Why does the brightness of the light emitted by a flashlight decrease as the flashlight moves farther away from you?

Because the constant amount of light that the flashlight produces is spread outover a larger area when it's farther away, so the intensity at every point is less. The flashlight might attack you, so be careful. Also, if your earlobes are out of control, tape them down. Please.The torch light penetrate each so much light is not parallel, with the light propagation distance become far, spacing between the light light is more and more big, making smaller according to the density of light in the distance.


What is a light use for?

There are many reason one might require the use of a piano light. The most common reason would be that a pianist would need more light to see the sheet music.


After taking 15 index cards and piling them on top of a flashlight while in a dark room does the light stay dim after so long?

The light stay dim long as the cards is piled on top of the flash light. Human eye can adjust to see better in the dark and it might cause the thinking that after dimming by piling card over flash light for a while and it go brighter a little.


What is a piano light used for?

There are many reason one might require the use of a piano light. The most common reason would be that a pianist would need more light to see the sheet music.


What are the energy input an outputs of a flashlight?

Inputs-battery/electrical energy-this powers the light so it turns on. Without it, the flashlight will not work. -light bulb/light energy-this makes the shine work and produces the light. Without it, there would be no light from the flashlight -the on/off button/electrical circuit-this turns the system on and off. It allows the circuit to be opened and closed and prohibits the battery from running out. Without it, the flashlight would be on all of the time and the battery would run out. -casing-this protects the battery and the light from water damage or other damage. Without it, the flashlight could be damaged, it would be harder to use, and the person using the flashlight might get an electrical shock. Outputs-light/light energy


Would a flashlight work on the moon?

Yes, a flashlight would work on the moon since it emits light independently and does not rely on any external factors to illuminate. However, the lack of atmosphere on the moon means there would be no air particles to scatter the light, so the beam might appear more focused and clearer compared to Earth.