JIPMER 2017
- Exam
- JIPMER
- Year
- 2017
- Subject
- Physics
- Chapter
- Electromagnetic Waves
JIPMER 2017 · Physics · Electromagnetic Waves
A piece of blue glass heated to a high temperature and a piece of...
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,
Options
- Athe blue piece will look blue and the red piece will look red as usual.
- Bthe red piece will look brighter red and the blue piece will look ordinary blue.
- Cthe blue will look brighter as compared to the red piece.
- Dboth the pieces will look equal red.
Correct answer
C. the blue will look brighter as compared to the red piece.
Step-by-step solution
When blue glass is heated at high temperature, it absorbs all the radiation of higher wavelength except blue. If it is taken inside a dimly-lit room, it emits all the radiation of higher wavelength, hence it looks brighter as compared to the red piece.