General Knowledge :: Physics
- When a ring of metal is heated what happens to its hole ?
- The earth is a
- When temperature difference between liquid and its surroundings is doubled, the rate of loss of heat will:
- The word ''insolation' means
- Tap water is placed in an open pad and allowed to evaporate. After some time the temperature of water
- Heat is transmitted from higher temperature to lower temperature through the actual motion of the molecules in
- Which best describes how air moves during convection?
- The cooling by a desert Cooler is based on:
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