WebMay 31, 2024 · 10. The substances which give heat and light after combustion are called. a) flame. b) fuel. c) combustion. d) none of the above. b) fuel. Chapter 6 Class 8 Science NCERT Solutions will be useful in gaining good marks in the examinations. It will make entire memorizing process effortless and entertaining. WebCombustion and Flame of Class 8. Candles are usually made of paraffin wax, which is obtained from petroleum When a candle is burnt, following observations can be made -. …

Draw a labelled diagram of a candle flame and explain what

WebDifferent Zones of Candle Flame. Zones of candle flame can be categorized on the basis of color, luminescence and temperature. Outermost zone: This zone forms the veil of a candle flame. It is a non luminous part of flame. It is slightly bluish in color and is the hottest part of flame with flame temperature 1400°C approx. WebThis is the black part of the flames that contains unburnt particles of the carbon from the wick i.e. unburnt fuel. Middle Part: This is the biggest … inbound blinding isolation

NUMERICALS BASED ON CONVEX AND CONCAVE MIRROR

WebExplain the law of reflection in Chapter 16 of NCERT Solutions for Class 8 Science. The principle, when the light rays fall on a smooth surface, the angle of reflection is equal to the angle of incidence; also, the incident … Webof a ray diagram. Observe Fig.10.2 (a) closely. A number of rays parallel to the principal axis are falling on a concave mirror. Observe the reflected rays. They are all meeting/intersecting at a point on the principal axis of the mirror. This point is called the principal focus of the concave mirror. Similarly, observe Fig. 10.2 (b). WebMar 14, 2024 · The candle is a source of light. The wax of the candle reacts with the oxygen in the air and produces carbon dioxide. The wax combusts to produce heat and … inbound blocked check firewall settings