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प्रश्न
What does a large difference between the temperatures of a dry-bulb thermometer and a wet-bulb thermometer of a hygrometer indicate?
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उत्तर
A large difference between the dry-bulb and wet-bulb temperatures indicates low relative humidity, because more evaporation from the wet bulb cools it down.
A small difference means high relative humidity, because less evaporation occurs due to more moisture already present in the air.
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संबंधित प्रश्न
Fill in the blank:
The amount of cloud cover in the sky is expressed in ________
Name the factors that determine the temperature at a place.
How does the following element influence the weather of a place?
Temperature
With the help of your atlas, encyclopedias, and the Internet, find out about the climate of these places.
- Mumbai
- Delhi
- Kolkata
- London
- New York
- Sydney
In your notebook, draw neat, labelled, coloured sketches of the three different types of rainfall. Alongside each diagram, briefly describe in your own words, how each type of rainfall occurs.
- The diagram alongside illustrates one of the factors that affect temperature. What is it?
- Which side of the mountain is likely to have houses and be covered with trees?
What is wind? What precautions must be taken while placing a wind vane?
What is the weather report?
This could be a classroom activity. If your school laboratory has an anemometer, use it to record your city’s wind speed for a week. Use the Beaufort Scale to find out the character of wind during these days. Record your observations carefully in your notebook. You could even draw small neat sketches to show the effect of the wind.
Who am I?
I am the solid state of water droplets.
