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The tube rod has Tungsten as its cathode. When the light is switched on tungsten heats up exciting the electrons of phosporent (fluorescent). Due to excitation and de-excitation of the electrons, light of particular wavelength is released which falls within our visible range.
When we cut of the supply, the tungsten doesn't immediately cool off and so does the fluorescent powder on the inner sides of the wall of tube rod. Hence, the tube rd glows for few minutes even after we switch it off.
What else can I help you with?
How do stars shine on a cloudy night?
Stars shine on a cloudy night because their light is very bright and can penetrate through the clouds. Even though clouds can block some of the starlight, enough of it gets through to be visible to us on Earth. The brightest stars are still visible even on a cloudy night.
Which of the celestial objects can actually shine and how is it that those that can't still appear to shine?
some celestial objects cant shine because some of them do not let light escape.But some actually shine because some of them allow light to escape.
What causes the moon to shine at night?
The moon does not produce its own light; it reflects sunlight. The amount of illuminated surface visible from the Earth changes due to the moon's orbit around our planet, creating the appearance of different moon phases.
What are some cool things to say as a status on facebook?
if it weren't for facebook, no one would care about your birthday all i do is win[; even in the dark, i shine like a strobe light
What star does not shine?
Yes. Stars are enormous balls of hydrogen and helium that carry out nuclear fusion in their cores. They are extremely hot and so shine brightly. They appear as tiny points of light only because they are so distant.
The moon shine at night where does the light comes from?
The shining of the moon at night is the reflection of the sun bouncing off the surface of the moon. That is why we on Earth can see the moon appear as shining. For me: At day time when the sun heats the moon, the moon become hot by the energy absorbed and for anything that is hot it radiates light to some extent somehow our eyes can only receive light for wave length about 400 nm to 700 nm, and that light radiated from moon has low intensity from light radiated from the sun, we cannot see moon light at day time. At night, we can easily see the moon light since no longer exist light from the sun. Therefor, anything when it is being heated, it radiates light eventually. And for this, certainly, we can store the sun light at day time and use it at the night time, don't you think so?
What happens when you shine a light at fish in the night?
When you shine a light at fish at night, it can attract them to the light source due to their natural curiosity and the way certain fish are drawn to illuminated areas, which often attract smaller prey. This phenomenon is commonly observed in fishing, where anglers use lights to attract fish to the surface. However, excessive or prolonged exposure to bright lights can also disturb their natural behavior and habitat. Additionally, some species may become more vulnerable to predators when illuminated.
What are some things that can reflect light?
Anything and everything you can see that doesn't shine on its own and doesn't look black reflects light.
What are some flirty forward text messages?
your eyes shine like the night skyyy i luv you is what i used for my bf
Why doesn't the sun shine at night?
The Sun shines all the time, but only one side of the Earth can face the Sun, and this constantly changes as the Earth spins. The Sun does not actually go around the Earth, but it seems to as the Earth rotates.At night, you are on the half of the Earth that is facing away from the Sun, so it is still shining, but on the other side of the Earth. You can still see some of the Sun's light at night, because it is the light that is reflected by the Moon.
What happens when you shine light through a mirror?
When you shine light through a mirror, the light will reflect off the mirror's surface and bounce back. Some light may also pass through the mirror, depending on its transparency. Overall, the mirror will predominantly reflect the light due to its smooth and reflective surface.
Why is sun shine?
When its atoms fuse it releases a bunch of energy and radiation, some of which is in the visible spectrum of light.
