Advertisements
Advertisements
प्रश्न
Why is a newly made quit warmer than an old one?
Advertisements
उत्तर
A newly made quilt is warmer than an old one because the cotton in the old quilt gets compressed and very little air will remain trapped in it, hence heat insulation is quite poor.
APPEARS IN
संबंधित प्रश्न
Convert – 40°F to the Celsius scale.
Write the SI unit of coefficient of cubical expansion.
A small gap is left between two iron rails of the railway track. Why?
Draw a neat and labeled diagram of a clinical thermometer
Give a scientific reason for the following:
Old quits are less warm than the new ones.
The hot metal ball is suspended from a string in a metal box as shown in the following figure
(i) What are the ways in which the ball loses heat
(ii) Which side of the box will be the hottest and which the least hot after some time? Explain.

Where am I?
The mean annual temperature is 25°C around me.
The hotness of the object is determined by its ______.
