Heating Blue/Yellow Glass: What Happens?

  • Thread starter ananthu
  • Start date
  • Tags
    Glass
In summary: Blue and yellow light will be emitted when a glass is heated, as they have a longer wavelength than red and green light.
  • #1
106
1
When a piece of red glass is heated to high temperature, it glows green. Similarly, when a green glass is heated to high temperature, it glows red. But How does a blue or yellow glass glow when heated? I could not find the answers for this when I browsed.
 
Science news on Phys.org
  • #2
ananthu said:
When a piece of red glass is heated to high temperature, it glows green. Similarly, when a green glass is heated to high temperature, it glows red.
What evidence do you have of either of these claims?
 
  • #4
Ok, so instead of simply Googling for the answer, how about you apply some logic. Did you read the hint that suggests a relationship between the colour of the glass and the colour it will glow?

In the colour spectrum, what relationship do red and green have to each other?
 
  • #5
ananthu said:
When a piece of red glass is heated to high temperature, it glows green. Similarly, when a green glass is heated to high temperature, it glows red. But How does a blue or yellow glass glow when heated? I could not find the answers for this when I browsed.
The room-temperature color of the glass refers to the wavelengths that are reflected. As a consequence, those same wavelengths are only weakly emitted when the glass is heated, while other wavelengths are strongly emitted. As the book explains, a lack of green in an otherwise white spectrum will appear red.

There is also the complication that, as an object is heated, it first glows predominately red, and then when heated further this shifts to a white color. Apparently the book is talking about these higher "white-hot" temperature levels for the glass.
 
  • #6
Redbelly98 said:
As the book explains, a lack of green in an otherwise white spectrum will appear red.

Right. So the question simply boils down to one of complementary colours.
 

1. What is the difference between blue and yellow glass?

Blue glass is made with cobalt oxide, which gives it a deep blue color. Yellow glass is made with iron oxide, which creates a yellow tint.

2. Can blue and yellow glass be heated together?

Yes, blue and yellow glass can be heated together. However, the colors may mix and create a green hue.

3. How does heating affect the color of blue and yellow glass?

When heated, both blue and yellow glass will become more vibrant and intense in color. Blue glass may also turn slightly purple, while yellow glass may turn a deeper shade of orange.

4. What happens if you heat blue and yellow glass at different temperatures?

The colors of blue and yellow glass will change at different rates when heated at different temperatures. Blue glass will become more intense at a lower temperature, while yellow glass may require a higher temperature to change significantly.

5. Is it safe to heat blue and yellow glass?

Yes, it is safe to heat blue and yellow glass. However, as with any glass, it is important to handle it carefully and use proper safety precautions when heating to avoid any potential hazards.

Suggested for: Heating Blue/Yellow Glass: What Happens?

Back
Top