Question

C. Give reasons for the following.
1. The Six's thermometers are kept inside the Stevenson screen.
2. The bulb of the wet bulb thermometer is always wrapped in a piece of wet cotton cloth.​

Answer 1

1} The Stevenson screen holds instruments that may include thermometers (ordinary, maximum/minimum), a hygrometer, a psychrometer, a dewcell, a barometer and a thermograph. Stevenson screens may also be known as a cotton region shelter, an instrument shelter, a thermometer shelter, a thermoscreen or a thermometer screen.

2}A thermometer left naked and exposed to the air will measure the ambient temperature. If you wrap the bulb of the thermometer in wet cloth, by contrast, the evaporating water from the wet cloth will cool the thermometer down, and its temperature will be cooler than it would be otherwise.

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Answer 2

Answer:

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