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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
The process of converting a liquid into a solid is called ________.
The amount of heat gained by a substance is equal to the product of its mass and latent heat.
Why does the bottom of a lake not freeze in severe winter though the surface is all frozen?
Calorie is the unit of ______.
We feel the heat on our body when the ______ shines.
A marble tile would feel cold as compared to a wooden tile on a winter morning because the marble tile ______.
Assertion: Small gaps left between railway lines.
Reason: It allows for the contraction of rails during summer.
You would have noticed some space being left on railway tracks. Why?
What is heat energy?
In which of the following, chemical energy is converted into heat energy?
