Transmission Of Heat Question 264

Question: Four pieces of iron heated in a furnace to different temperatures show different colours listed below. Which one has the highest temperature

[MP PET 1992]

Options:

A) White

B) Yellow

C) Orange

D) Red

Show Answer

Answer:

Correct Answer: A

Solution:

At low temperature short wavelength radiation is emitted. As the temperature rise colour of emitted radiation are in the following order Red®Yellow®Blue®White (at highest temperature)