Advertisements
Advertisements
प्रश्न
Advertisements
उत्तर
APPEARS IN
संबंधित प्रश्न
Fill in the blank:
°C is the unit of ......................
Name the one common unit of temperature. Write their symbols also.
Define temperature and write its SI unit.
Do all substances expand on heating? Give examples.
How can a glass stopper jammed in the neck of a bottle be removed?
The following figure shows a rectangular box with two tubes P and Q at the top. A burning candle R is placed under the tube P. The candle burns brightly.
Explain:
(i) How is the air in the box circulating?
(ii) What will happen if the opening Q is closed?
Suppose your normal body temperature were lower than what it is. How would the sensation of hot and cold change?
Give reasons why –
chimneys are located high up in kitchens and factories
Which factor determines the direction of flow of heat from one body to another?
Why are burns caused by steam more painful than those caused by boiling water at the same temperature?
