The presence of humidity in the atmosphere is ensured by observing water drops on the outer surface of a steel glass filled with hot water. The warmth of the hot water causes moisture in the air to condense on the ...
Tiwari Academy Discussion Latest Questions
Hot air produces more flame compared to boiling water, steam, or sun rays. When air is heated to high temperatures, it expands, becoming less dense and rising. This convection process creates a flame when combined with a fuel source.
Woolen clothes are warmer than cotton clothes because they are good insulators of heat. Wool fibers trap air within their structure, creating a barrier against heat loss. This insulation prevents body heat from escaping, keeping the wearer warm.
White clothes are cooler than black clothes because they reflect whatever light reaches them. Unlike black clothes, which absorb light and convert it into heat, white clothes reflect most of the light, including infrared radiation, reducing heat absorption and maintaining ...
The morning sun is not as hot as the afternoon sun because in the morning, the sun’s rays have to travel a greater distance in space before reaching the Earth’s surface. Therefore, they are more scattered and less intense, resulting ...
Dark-skinned people from Africa compared to white-skinned people from Britain generally feel more heat. The higher melanin levels in their skin absorb sunlight, leading to increased heat retention. In contrast, lighter-skinned individuals dissipate heat more efficiently.
The boiling point of water decreases with increasing altitude. Mussoorie is at a higher altitude than Delhi. Therefore, the boiling point of water in Mussoorie will be less than 100°C.
The normal temperature of a human body is approximately 37 degrees Celsius (°C) when measured orally. This temperature serves as a baseline for assessing an individual’s health. It can vary slightly depending on factors such as age, time of day, ...
Water is used in hot water bags because its specific heat is high, meaning it can absorb and retain a significant amount of heat. This property allows hot water bags to maintain their temperature for extended periods, providing effective warmth ...
Metal tea pots have wooden handles because wood is a poor conductor of heat, preventing the handle from becoming too hot to touch during use. This property ensures user safety by insulating against the heat generated by the hot contents ...