Question

what happens if iron rod is gradually increase?

Answer 1

The heat supplied to the iron rod is absorbed by the iron rod. ... As the heat increases the excitation also increases and the intensity of the light given out also increases. So gradually the iron turns red and then slowly the color changes with increase in intensity.

Answer 2

The heat supplied to the iron rod is absorbed by the iron rod. ... As the heat increases the excitation also increases and the intensity of the light given out also increases. So gradually the iron turns red and then slowly the color changes with increase in intensity. I hope this helps you............