Question

glowing of a bulb correct reson​

Answer 1

Explanation:

So, when we switch on a bulb, electrons in the tungsten wire get excited and release energy in terms of photons. In all, there is just a temporary rise in temperature and release energy in the form of light. ... Hence, glowing of a bulb is a physical type of change.

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Answer 2

Answer:

because of helium group element present in bulb