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Plants grow well in the red end of the light spectrum. Fluorescent tubes come in many light outputs. Cool white which is in the blue end of the spectrum down to the warm white which is on the red end. Manufactures make a growlux tube which is used specifically for plant growth. Store meat counters are starting to use these tubes for display lighting as they enhance the red colouring of the meat on display.
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Why does a light bulb filament act as resistor?
The filament of a light bulb isn't like a resistor ... it is a resistor. The only difference from the ones on circuit boards is the it's designed to operate at a much higher temperature. So hot that it glows. The glass envelope is there to prevent oxygen from getting in and promptly burning it. When the filament becomes too hot it breaks breaking the current that was lighting it in the first place. That is why the light bulb "burns" out.
What convinced scientists that light is a particle?
Nothing. Scientists believe that light can act as both a particle and a wave. Look up the famous double-slit experiment.
How do light microscopes differ from election microscope?
a light microscope uses a lamp underr the microscope and an electron microscope sends a beam of electrons down to act like a magnet to suppl light to the object.
What is used to clone organisms?
A pluripotent (embryonic) stem cell and nucleus from a donorEmbryonic stem cell will act as a embryo (Egg) and donor nucleus will act as a fertilized nucleus, just fuse them and grow in appropriate conditions
When droplets of water in the atmosphere act like prisms the colors in sunlight undergo?
a phenomenon called dispersion. This causes the different wavelengths of light to separate, resulting in the formation of a rainbow. The droplets act as miniature prisms, bending and reflecting light to create the distinctive bands of colors.
Can light blub act as sun and make flower?
If you use fluorescent lighting you will receive flowers on your plants. A regular light bulb will not do the trick. Buy a cheap shop light fixture and put in two long tubes one cool and one warm. Yes- artificial light can be used to grow plants, including flowers. A light bulb may not make enough light. Search for grow light or plant light.
What was George Washington's role in the judiciary act of 1789?
He invented the light bulb
What 2 forces act on a seedling to make it grow?
light and water
What is the job of a bulb in a circuit?
The job of the bulb in a circuit is to convert electrical energy to light. It's called the load in the circuit.
What are the uses bulb in electronics?
Bulbs, are used to act as current regulators in some circuits. If you are talking about bulbs that plants grow from, they do not belong in literature discussions, do they?
What type of energy is turning on a light?
The light bulb uses electrical energy, and produces light, as well as waste heat. The act of turning it on in itself uses a small amount of energy stored in your muscles.
Where will a full range of colors be better seen in a room with fluorescent or outside under daylight?
Daylight will have a more complete spectrum. An interesting experiment is to hold a CD close to a fluorescent lamp. The CD will act as a primitive diffraction grating, and you'll see distinct blobs of colour - not a continuous rainbow spectrum. You're seeing the light emitted by the various phosphors in the fluorescent tube.
Will the light from a wide light source act like light from a small light source or light from a large light source?
Light from a small light bulb behaves in the same way light from a bigger light bulb. When you say wide, I assume you mean to ask about light from torches. Light travels in straight lines. If light hits a surface, it will be absorbed or reflected, there are no exceptions. So if light is emitted from a 'wide' source, it will be able to travel to a larger area, lighting up more, but at a lower concentration. If the same amount of light is emitted from a large or small source in the form of a beam, the same applies. The smaller the beam, the more concentrated the light.
What type of energy transformation occurs when a light bulb is turned on?
Electrical energy is transformed into heat and light. More specifically, electrical energy from the household wiring is turned into thermal energy (heat) by the filament which in turn becomes luminous energy (light). Some energy is lost due to resistance in the conductors.
Is it correct to say that a bulb in a circuit is a resistor?
Yes it is. The filament in a standard incandescent bulb is a type of resistor. An incandescent light bulb contains tungsten which reduces electricity and converts electricity to heat and light. All incandescent bulbs are resistors, but only a fraction of resistors are bulbs. If you want to see if a bulb is a resistor, try adding another bulb in series without changing the voltage. Both bulbs will be very dim. Another way to test this is to get a multimeter and set the meter to the resistance setting. If you get any value other than zero, then it is functioning as a resistor.
Why does a light bulb filament act as resistor?
The filament of a light bulb isn't like a resistor ... it is a resistor. The only difference from the ones on circuit boards is the it's designed to operate at a much higher temperature. So hot that it glows. The glass envelope is there to prevent oxygen from getting in and promptly burning it. When the filament becomes too hot it breaks breaking the current that was lighting it in the first place. That is why the light bulb "burns" out.
What is the function of the glass bulb in a bulb?
On a standard incandescent light bulb, the glass traps a set of gases around the filament that help keep the filament from burning up quickly.(The filament is the part that does the actual glowing inside the glass.)It also keeps the oxygen in the air that we breathe away from the filament. Oxygen is one of the gases that will vastly accelerate the destruction of the filament.(Also, the glass keeps anything from touching the What_is_the_purpose_of_the_glass_on_a_light_bulbconductors inside.)The glass can also act as a filter to remove any ultraviolet radiation caused by certain types of light bulb's ("lamp's" technically) methods of creating a arc to produce light.When specially treated, the glass can also be used to break up the light rays to cause more diffused source of light. (Think "Soft White" to get an idea.)
