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Yes. That is why they are called traffic lights.
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∙ 8y ago
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Atoms emit energy as light when?
Atoms emit energy as light when electrons move to a lower energy level
Does the energy from Sun energise other planets so they can emit light?
No. Planets do not emit light; they can only reflect light from the Sun.
Why do you know that lithium salts will never emit green light and copper salts will never emit red light?
Because they each have their own level of energy. Green light has more energy than red light.
Why si and ge does not emit light?
energy levels wrong.
Energy Transformation in traffic light?
Electricity into light.
Light energy travels in electromagnetic waves How do electromagnetic waves emit energy?
Through Radiation
What lets you know energy has been released?
The electrons are excited and they emit light. So light.
Could you emit the same amount of light energy per second which must emit more photons per second a source of red light or a source of blue light?
Red light has less energy per photon than blue light, so to get the same energy we would need more red photons.
How does a fireplace emit radiant energy?
In the form of visible and infrared light from the fire.
What type of energy does an element need to absorb to emit light?
Many different types of energy can do this. Heat will cause anything to emit blackbody radiation and if there is enough heat the blackbody radiation will overlap the visible light spectrum and the object will be incandescent. To emit light as a narrow spectral line requires raising electrons in the element to higher energy orbitals and allowing them to fall back, emitting photons. The type of energy that can do this can be of many sorts: light, chemical, electrical, etc.
Do light bulbs emit light or suck dark?
Light bulbs emit light.
Does technetium emit light?
Technetium doesn't emit light.
