With reference to Wet Bulb temperature which of the following statements is are correct 1 This tempe...........

Everyday Science (PCS) Physics

With reference to Wet Bulb temperature, which of the following statements is/are correct?

1. This temperature is specifically used to measure humidity helping estimate whether conditions are safe for humans or not.

2. This temperature can actually be measured by wrapping a wet cloth around the bulb of a thermometer.

3. The higher wet bulb temperature can cause heatstrokes and is responsible for a high mortality rate.

Select the correct answer using the code given below:

1 and 2 only

2 only

1 and 3 only

None of the above

Statement 1 is not correct: “Wet-bulb” temperature is used to measure both heat and humidity, helping estimate whether conditions are safe for humans or not.
Statement 2 is correct: Wet-bulb temperature is measured by wrapping a wet cloth around the bulb of a thermometer. It represents the lowest temperature air can reach by evaporation of water. Internationally, the wet-bulb globe temperature is calculated by using a globe thermometer and additionally accounting for solar radiation and wind speed.
Statement 3 is not correct: Being outdoors during high wet-bulb temperature can cause heatstrokes as well as lightheadedness, nausea, organ swelling, and, in rare cases, death. While the human skin has a temperature of around 35 degrees Celsius, a wet-bulb with the same heat means sweat can no longer be used to cool the body. In some cases, wet-bulb temperatures as low as 28 degrees Celsius have also led to mass mortality across the world.