Question

Hold a glass tube with a pair of tongs and introduce its one end in dark zone being a lighted matchstick near the other end of glass tube.why do we see a flame​

Answer 1

Answer:

Hold a glass tube with a pair of tongs and introduce its one end in the dark zone of a non-flickering candle flame. Bring a lighted matchstick near the other end of the glass tube. You will see the flame. Notice that the wax near the heated wick melts quickly.