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 the red piece will look red as usual.
• B

  the red piece will look brighter red and the blue piece will look ordinary blue.
• Correct answer
  C

  the blue will look brighter as compared to the red piece.
• D

  both the pieces will look equal red.

Hence, the correct answer is option: 'C'.