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प्रश्न
Give scientific reason.
Dew drops form on the grass in winter.
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उत्तर
In winter, the temperature drops at night, due to which the water vapour present in the air cools down and turns into water droplets through the process of condensation. When this cold air comes in contact with the surface of the grass, the water vapour condenses and collects on the grass in the form of dew droplets.
संबंधित प्रश्न
What will absorb heat?
Iron griddle (tava)
What will absorb heat?
Glass vessel
Which temperature segment is chosen when determining the unit of heat? Why?
The process of converting a liquid into a solid is called ________.
Why does the bottom of a lake not freeze in severe winter though the surface is all frozen?
When an electric current is passing through the conductor ______ energy is produced.
A circular metal loop is heated at point O as shown in the following figure.
- In which direction would heat flow in the loop?
- In which order are the pins at points P, Q and R fixed with the help of wax fall if points O, P, Q and R are equidistant from each other?
The SI unit of heat energy is ______.
Arrange the following in order of decreasing the expansion of heating: Steel, milk, air.
