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Light of only one wavelength that travels with its crest and troughs aligned?
That's monochromatic, coherent light. A well known source of such light is a laser.
Is an tungsten light the most efficient light?
What is more efficient a tungsten light or an incandescent light?
What is the deference between incandescent and fluorescent lights?
An incandescent light uses electric current passing through a wire with a high resistance to current flow. That makes the wire very hot and it glows, producing the light. A fluorescent light uses electricity to charge a gas in a tube. The charged gas glows, producing the light. For the same amount of light, more electricity is needed in an incandescent light than in a fluorescent light, but developing and building fluorescent lights required more advanced technology than did incandescent lights.
10 man-made sources of light?
1. Incandescent light bulb 2. Halogen light bulb 3. Compact fluorescent light bulb 4. Light emitting diode (LED) 5. Mercury vapor light bulb 6. Neon light 7. High intensity discharge lamps 8. Carbon arc lamp 9. laser 10. kerosene lamp
Name two useful properties of coherent light?
High energy density. Low dispersion.
What is the filament in an incandescent light bulb made of?
The filament in an incandescent light bulb is typically made of tungsten.
Can a laser be made from a light bulb?
No. Laser light is coherent. Light bulb light is not.
How is laser light different from incandescent light?
The intensity of light from most light sources is inversely proportional to the square of the distance from the source. So the intensity two meters from an incandescent lamp is one quarter of the intensity at one meter, and at three meters from the lamp the intensity is one ninth of the intensity at one meter. Laser light ideally has the same intensity at any distance.
Who was the light bulb made by?
The incandescent electric light bulb was invented by Thomas A. Edison.
Is poly chromatic light can be coherent?
Coherent light (like a laser) is a single frequency. Polychromatic light is, by definiation, multiple frequencies and cannot be coherent.
What is the name for a regular light bulb?
incandescent
What is incandescent light bulb?
An incandescent light bulb, incandescent lamp or incandescent light globe is an electric light which produces light with a wire filament heated to a high temperature by an electric current passing through it, until it glows.
What is a device that produce coherent light?
The name of the device that produces coherent light is LASER.
What is a device producing a coherent light?
The name of the device that produces coherent light is LASER.
What is the coil made of in incandescent light bulbs?
It is made of tungsten, a metal with a very high melting point.
Who made incandescent light bulb?
Thomas Edison made the first operating incandescent light bulb. But in 1800, Humphrey Davy invented the electric light. It didn't last long, and was not a bulb, though. Arc lights later became popular, but again, were not in a bulb.
Is the burner an incandescent?
No, a burner is not considered incandescent. Incandescent refers to light produced by a hot object, like an incandescent light bulb, not a heat source like a burner.
