It happens due to:
1)Insufficient evaporation taking place from the wet bulb due to salt and dust or other impurities on the muslin,or due to presence of no water on the muslin.
2)It maybe due to difference in sensitivities of both the thermometers whereby one of them is slow in recording sudden changes of temperatures.
3)Lastly,maybe due to faculty of broken thermometers.
The wet bulb thermometer is typically read lower than the dry bulb thermometer because the evaporation of water on the wet bulb cools the sensor by removing heat from it. This process is known as evaporative cooling and results in a lower temperature reading on the wet bulb thermometer compared to the dry bulb thermometer.
because the water causes the temperature to be lower
No, the wet bulb is always lower. Evaporation from the wet bulb reduces its temperature.
No, the wet bulb is always lower. Evaporation from the wet bulb reduces its temperature.
No, the wet bulb is always lower. Evaporation from the wet bulb reduces its temperature.
Bulb temperature is typically lower than dry temperature because the bulb thermometer measures the temperature of the air without factoring in the effects of evaporation. The dry bulb temperature, on the other hand, accounts for the cooling effect of evaporation, giving a lower reading than the bulb temperature.
A thermometer bulb placed too high will measure a lower temperature than the actual temperature in the container, as it may not be fully submerged in the substance being measured. This can lead to inaccurate readings and potentially incorrect conclusions about the system being measured.
Yes as your fingers are warmer than the air surrounding the thermometer bulb.
If surrounding water temperature is lower than the water in the thermometer, heat will transfer from the water in the thermometer to the colder water causing the liquid in the thermometer to drop.
Rubbing alcohol is used in thermometers because it has a lower freezing point than water, allowing the thermometer to measure lower temperatures accurately. Additionally, alcohol has a wider temperature range than mercury, making it suitable for various types of thermometers.
The wet bulb temperature is always lower than the dry bulb temperature. The wet bulb temperature is the temperature taken by a thermometer covered in a wet cloth and exposed to moving air, and it reflects the evaporative cooling effect.
cylindrical bulb is more sensitive than the spherical bulb.