COMEDK · Physics · 12. Thermal Properties of Matter
A piece of blue glass heated to a high temperature and a piece of red glass at room temperature are taken inside a dimly lit room. Then
- A the blue piece will look blue and red will look as usual
- B red will look brighter red and blue will look ordinary blue
- C blue will shines like brighter red compared to the red piece
- D Both the pieces will look equally red
Answer & Solution
Correct Answer
(C) blue will shines like brighter red compared to the red piece
Step-by-step Solution
Detailed explanation
When blue glass is heated to a high temperature, it absorbs all radiations of higher wavelength except red. So, when it is taken inside a dimly lit room, it emits all radiations and hence looks brighter red compared to the red piece. This happens according to Kirchhoff's law of…
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