Advertisements
Advertisements
प्रश्न
Which is the hottest part in the flame of candle ______.
विकल्प
Blue
Yellow
Black
Way part
Advertisements
उत्तर
Which is the hottest part in the flame of candle Blue.
APPEARS IN
संबंधित प्रश्न
Name the unit in which the calorific value of a fuel is expressed?
Picture based question

Arul and Aakash were doing an experiment in which water was to be heated in a beaker. Arul kept the beaker near the wick in the yellow part of candle flame. Aakash kept the beaker in the outer most part to the flame. Whose water will get heated in a shorter time?
Magnesium ribbon on burning in air produces
On placing an inverted tumbler over a burning candle, the flame extinguishes after some time. This is because of non-availability of
The ______ temperature at which a substance catches fire is called its ______ temperature.
Write True/False against the following statement and also correct the false statement.
The substances which vapourise during burning, give flame.
You are provided with three watch glasses containing milk, petrol and mustard oil respectively. Suppose you bring a burning candle near these materials one by one, which material(s) will catch fire instantly and why?
Which is the luminous part of the flame?
Match the following:
| 1. | Inner zone | a. | Yellow |
| 2. | Outer zone | b. | Borax powder |
| 3. | Middle zone | c. | Blue |
| 4. | Green flame | d. | Black |
Name a few substances which produce flames on burning.
