Question

A piece of blue glass when heated to a high temperature and a piece of red glass at room temperature are taken inside a dimly-lighted room. Then:

• A. The blue piece will look blue and the red piece will look red as usual
• B. The red piece will look brighter red and the blue piece will look ordinary blue
• C. The blue piece will look brighter red compared to the red piece
• D. Both the piece will look equally red

Answer 1

The correct option is C The blue piece will look brighter red compared to the red piece

The brightness is related to intensity and has nothing to do with color.
The red glass had been heated to a higher temperature, it would have appeared brighter.
Temperature is the measure of the intensity.