Advertisements
Advertisements
प्रश्न
Select the correct alternative
A thermometer uses
विकल्प
water
mercury
air
none of the above
Advertisements
उत्तर
mercury
APPEARS IN
संबंधित प्रश्न
Name the mode of transfer of heat in the following :
(a) solid,
(b) liquid,
(c) gas
(d) vacuum
Draw a labelled diagram of a thermo flask. Explain how the transfer of heat by conduction, convection and radiation is reduced to a minimum in it.
What will absorb heat?
Wax
What will absorb heat?
Soil
Which temperature segment is chosen when determining the unit of heat? Why?
______ energy can be generated by the burning of fuels like coal, wood, charcoal, gasoline, etc.
Analogy:
Movement of molecules:: Heat.
Heat energy:: ______.
A marble tile would feel cold as compared to a wooden tile on a winter morning because the marble tile ______.
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?
Which of the following is true?
