Question

What kind of change is undergone when an electric bulb glows?

• A. A physical change
• B. A chemical change
• C. Both physical and chemical changes
• D. A permanent change

Answer 1

The correct option is A A physical change

When an electric bulb glows, it is a physical change. As the light produced by the electric bulb is due to the heating effect of the conductor. Even though there is an occurrence of temperature change since no new substances are produced, it is considered to be a physical change.

Hence, option A is correct.