| 1 |
The process in which heat is transmitted form one body to another by the interaction of atoms and the movement of free electrons is known as |
- A. convection
- B. radiation
- C. conduction
- D. both (a) and (b)
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| 2 |
Wood, cork, cotton, wool, rubber are the eamples of: |
- A. Conductor
- B. Thermal conductor
- C. Insulator
- D. both a & b
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| 3 |
The brids stretch out their wings and circle in the rising currents of hot air called |
- A. conduction
- B. convection
- C. radiation
- D. thermals
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| 4 |
What of the following is a god radiator of heat? |
- A. a Shinning silvered surface
- B. a dull black surface
- C. a white black surface
- D. a shinning colored surface
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| 5 |
Land breeze from land to sea during: |
- A. Day
- B. Night
- C. Afternoon
- D. Morning
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| 6 |
Shining silvered surface is a best: |
- A. Emitter
- B. Absorber
- C. Reflector
- D. None of these
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| 7 |
The substances through which heat does not conduct: |
- A. Conductors
- B. Bad conductors
- C. Insulators
- D. Both B and C
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| 8 |
There are ways to transfer the heat from one place to another. |
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| 9 |
Thermal conductivities of Lead |
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| 10 |
The bad conductor of heat is: |
- A. Iron
- B. Copper
- C. Air
- D. Aluminum
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