0
What is the need of acquagad coating inside a glass bulb in a CRT?
Vashu143
Want this question answered?
Be notified when an answer is posted
Add your answer:
Earn +20 pts
Why is the filament of a light bulb surrounded by glass?
Because inside of the glass bulb lies a vacuum that prevents the bulb from burning out within a few seconds rather than several thousand hours.
What are the parts of a light bulb called?
The globe is the outer glass shell. The shaped coil inside is the filament. Wires and the stem support the filament inside the bulb. There are gases within the light bulb to prevent it from burning out. And the base is to securely support the bulb.
Why is the bulb of thermometer made of thin glass?
The bulb thermometer is made of thin glass so as to detect the slightest change in temperature. It is made of thin glass for visibility as well.
The light-producing element in a fluorescent bulb is the?
Light in fluorescent bulbs occurs when electricity excites the mercury vapor inside the tubular glass bulb.
Why light emitted by a bulb is yellowish in colour but from a fluroscent tube is white?
You are seeing the spectrum of the metal used in a light bulb. In a florescent tube you are seeing ultraviolet light being transformed into visible light by the internal phosphor coating.
What is the coating inside a regular incandescent light bulb?
It is coated with hard glass and fused quartz that can reach temperature between 200 and 250 degree Celsius.
Why bulbs contains phosphor inside the glass?
In an incandescent bulb, if there is no phosphor coating the glass, the filament produces a very glaring light that is painful to look at directly. The phosphor takes the light of the filament and turns it into a more even, and less glaring glow.
What are compact flourecent lamps?
A Compact Fluorescent Lamp (CFL) is type of energy-saving bulb made from a small glass tube which is filled with mercury vapour. It has a phosphorescent coating on the inside of the tube which glows...
What is the insulator in a light bulb?
Glass is the insulator in a light bulb. The base has a heavy piece of glass to separate the ring from the center, and there is a glass support inside the bulb to hold up the filament and separate the wires going to the filament.
Why is the filament of a light bulb surrounded by glass?
Because inside of the glass bulb lies a vacuum that prevents the bulb from burning out within a few seconds rather than several thousand hours.
Is tube light and bulb transparent or translucent or opaque?
both are transparent since you cannot expect efficient lighting when light medium is translucent or opaque. In tubelight it is the fluoroscent coating inside the the tube which produces light and in bulb it is the filament. But finally the light passes through the glass which is transparent in nature
What are the parts of a light bulb called?
The globe is the outer glass shell. The shaped coil inside is the filament. Wires and the stem support the filament inside the bulb. There are gases within the light bulb to prevent it from burning out. And the base is to securely support the bulb.
What do you use to make a light bulb?
Glass and metal. More specifically, a filament, wires that conduct, and a vacuum inside a glass shell.
What do use to light a light bulb?
Glass and metal. More specifically, a filament, wires that conduct, and a vacuum inside a glass shell.
What is seeded glass?
Seeded Glass has pinhead sized bubbles. The glass softens the light coming from the bulb inside and replicates the naturally seeded glass made in colonial times.
Why is the bulb of thermometer made of thin glass?
The bulb thermometer is made of thin glass so as to detect the slightest change in temperature. It is made of thin glass for visibility as well.
What is seeded?
Seeded Glass has pinhead sized bubbles. The glass softens the light coming from the bulb inside and replicates the naturally seeded glass made in colonial times.
