Advertisements
Advertisements
प्रश्न
Give a scientific reason for the following:
In winter the birds fluff up their feathers.
Advertisements
उत्तर
In winter the birds fluff their feathers in order to trap air in their feathers so that the air provides heat insulation to their body from the surroundings and keeps them warm and saves them from winter.
APPEARS IN
संबंधित प्रश्न
Is it correct to say that heat is the cause of temperature?
What is a bimetallic strip?
State the advantages and disadvantages of mercury and alcohol as thermometric liquids.
Out of metals, liquids, and gases:
Which one is worst conductor of heat?
What is temperature?
Numerical Problems.
An iron ball requires 1000 J of heat to raise its temperature by 20°C. Calculate the heat capacity of the ball.
Why do people prefer wearing white clothes during summer?
What is the minimum possible temperature? Is there also a maximum possible temperature?
