A bolometer measures thermal radiation. It detects and quantifies infrared or heat radiation emitted by objects. By monitoring changes in electrical resistance when exposed to thermal radiation, bolometers determine radiation intensity. They are essential in various fields for precise measurement ...
Tiwari Academy Discussion Latest Questions
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 ...
When hot water is sprinkled on a thick glass, the sudden temperature change causes the glass to expand rapidly. This expansion creates stress within the glass, which can exceed its tensile strength, leading to breakage. Therefore, the sudden expansion of ...
As water cools from 10°C to 0°C, its density decreases until it reaches 4°C, where it is at its minimum. Below 4°C, water begins to expand as it approaches the freezing point, causing its density to increase again. Therefore, the ...
In summer, the heat causes rubber to harden, reducing its flexibility. As a result, when air inside the bicycle tube expands due to the heat, the hardened rubber cannot adequately accommodate the increased pressure. This leads to increased stress on ...
When a glass rod is exposed to steam, its length increases due to thermal expansion, while its width remains unaffected. Glass primarily expands in the direction of the applied heat, elongating along its length. However, its width does not experience ...
When the solid metal ball is heated, the particles inside it gain kinetic energy, causing them to move more vigorously, leading to expansion. This expansion includes the volume of the cavity inside the ball, resulting in an increase in its ...