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A red hot iron wire starts emitting light, at this time the temperature of the iron is
a)Between 600°c to 800°c
b)Between 60°c to 80°c
c)Between 300°c to 400°c
d)Between 150°c to 250°c
Correct answer is option 'A'. Can you explain this answer?
Verified Answer
A red hot iron wire starts emitting light, at this time the temperatur...
900 �FIron or steel, when heated to above 900 �F (460 �C), glows with a red color. The color of any heated object changes predictably (due to black-body radiation) from dull red through orange and yellow to white, and can be a useful indicator of its temperature.
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Most Upvoted Answer
A red hot iron wire starts emitting light, at this time the temperatur...
The temperature of a red hot iron wire when it starts emitting light is between 600°C to 800°C. This temperature is known as the "red heat" stage, where the iron begins to glow red due to the heat being produced.
Explanation:
Red heat is the initial stage of heating in which an object starts to glow red. At this stage, the object's temperature is still relatively low, but it has reached the point where it begins to emit visible light. In the case of an iron wire, this means that the wire has been heated to a temperature of between 600°C to 800°C.
The reason why the iron wire starts emitting light at this temperature is because of the phenomenon known as incandescence. When an object is heated, the energy causes the electrons in the object's atoms to become excited and jump to higher energy levels. When these electrons return to their original energy levels, they release energy in the form of light.
In the case of the iron wire, the energy being released by the excited electrons is in the form of visible light, which is why the wire starts to glow red. As the temperature of the wire continues to increase, the color of the light emitted by the wire will change from red to orange, yellow, white, and eventually blue.
Conclusion:
In summary, the temperature of a red hot iron wire when it starts emitting light is between 600°C to 800°C. This temperature is known as the "red heat" stage, where the iron wire begins to glow red due to the energy being released by the excited electrons in the wire's atoms.
Explanation:
Red heat is the initial stage of heating in which an object starts to glow red. At this stage, the object's temperature is still relatively low, but it has reached the point where it begins to emit visible light. In the case of an iron wire, this means that the wire has been heated to a temperature of between 600°C to 800°C.
The reason why the iron wire starts emitting light at this temperature is because of the phenomenon known as incandescence. When an object is heated, the energy causes the electrons in the object's atoms to become excited and jump to higher energy levels. When these electrons return to their original energy levels, they release energy in the form of light.
In the case of the iron wire, the energy being released by the excited electrons is in the form of visible light, which is why the wire starts to glow red. As the temperature of the wire continues to increase, the color of the light emitted by the wire will change from red to orange, yellow, white, and eventually blue.
Conclusion:
In summary, the temperature of a red hot iron wire when it starts emitting light is between 600°C to 800°C. This temperature is known as the "red heat" stage, where the iron wire begins to glow red due to the energy being released by the excited electrons in the wire's atoms.
Community Answer
A red hot iron wire starts emitting light, at this time the temperatur...
Answer is a
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A red hot iron wire starts emitting light, at this time the temperature of the iron isa)Between 600°c to 800°cb)Between 60°c to 80°cc)Between 300°c to 400°cd)Between 150°c to 250°cCorrect answer is option 'A'. Can you explain this answer?
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