Physics questions
20027 published questions with worked solutions.
- A vessel contains 1 mole of O_2 gas (molar mass 32) at a temperature 2T. The pressure of the gas is P. An identical vessel...
- The heat can be transferred from a point of higher temperature to the point of lower temperature in the form of
- In conduction mode, heat can be transferred from a point of higher temperature to the point of lower temperature
- Convection of heat takes place in
- In radiation mode, heat energy can be transferred
- The transmission of heat by conduction is
- Metals are good conductance of heat because metals
- In a room, heat can go from one place to another by
- Heat energy reaches on the earth from the sun in the form of
- Water placed in a pot is heated because of
- A solid cube and a solid sphere are made of the same material and both have the same volume. If both are at the temperature of...
- If the liquid is heated in weightlessness, the heat is transmitted through:
- The speediest mode of heat transfer is :
- By which of the following methods could a cup of hot tea lose heat, if situated on metal take in an open space:
- In winter, the temperature inside the wall of a room as compared to the temperature of air in the room is
- In a thermos flask, attempt is made to reduce losses of heat by
- The velocity of heat radiation in vacuum is
- Thermal radiations are electromagnetic radiation belonging to
- The fastest mode of transfer of heat is
- Heat radiations cannot exhibit the following phenomenon. That is