Glowing of an electric bulb is a ______ change.

physical

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chemical

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both physical and chemical changes

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none of these

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Solution

The correct option is A physical
When electricity is passed through the bulb (tungsten ) the electrons in the atoms get excited and release the energy as light in terms of photons. So no chemical reaction is taking place. It is a physical reaction.

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Glowing of an electric bulb is a ______ change.

The correct option is A physical When electricity is passed through the bulb (tungsten ) the electrons in the atoms get excited and release the energy as light in terms of photons. So no chemical reaction is taking place. It is a physical reaction.

The correct option is A physical
When electricity is passed through the bulb (tungsten ) the electrons in the atoms get excited and release the energy as light in terms of photons. So no chemical reaction is taking place. It is a physical reaction.