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CBSE Class 8 Science Question 13 of 13

Combustion and Flame — Question 13

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Question 13

Abida and Ramesh were doing an experiment in which water was to be heated in a beaker. Abida kept the beaker near the wick in the yellow part of the candle flame. Ramesh kept the beaker in the outermost part of the flame. Whose water will get heated in a shorter time?

Answer

Ramesh's beaker, positioned in the outermost part of the flame, will heat up more quickly. This is because the outer region of a non-luminous flame is the hottest, in contrast to the less hot luminous (yellow) part near the wick of the candle.