1. Hot water is poured simultaneously in four metallic tumblers painted outside with different points. After some time the water will be found to have cooled most in the tumbler painted.
2. Which of the following criterion is used for any metal to be used as a cooking material ?
3. Heat from the sun reaches earth by the process of
4. Ocean currents are an example of
5. What type of heat transfer is boiling water?
6. Ventilators are provided near the ceiling of the room because
7. Wollen clothes keep the body warm because
8. Plants are dried up in winter due to frost because
9. A cup of hot coffee is placed on a metal table in a room. By which of the following methods does it lose heat?
10. In general, which is the cause of a land breeze?
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