Question

In which case the candle burns easily and why?
ans:​

Answer 1

Answer:

The candle burns freely in case (a) when air can enter the chimney from below. In case (b), when air does not enter the chimney from below, the flame flickers and produces smoke. In case (c), the flame finally goes off because the air is not available. In the sun, heat and light are produced by nuclear reactions.