Question

Apurva covered a burning candle with a glass. What'll happen to the burning candle?

• A. It will extinguish immediately.
• B. It will burn for some time before being cut off.
• C. It will continue burning.
• D. Candle will melt.

Answer 1

The correct option is B It will burn for some time before being cut off.

Fire is a chemical reaction that creates light and heat from oxygen and fuel. A lit candle needs to draw oxygen from the air in order to continue burning. If you limit the amount of air available, the candle's flame eventually goes out once it uses up all the oxygen and candle will burn for some time before being cut off.

Hence, the correct option is $\text{B}$