| 1 |
If heat Q flows in time 't' through some metal then rate of flow of heat is defined as |
- A. Flow of heat = 2Qt
- B. Flow of heat = Q/t
- C. Flow of heat = t/Q
- D. Flow of heat = Qt
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| 2 |
Heat reflected form the body depends upon : |
- A. Colour and form
- B. Form and speed
- C. Color and speed
- D. None
|
| 3 |
Land breeze blows from: |
- A. Sea to land drawing night
- B. Sea to land during day
- C. Land to sea during night
- D. Land to sea during day
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| 4 |
Unit of thermal conductivity is . |
- A. Wmk
- B. W m<sup>-1</sup> K<sup>-1</sup>
- C. Wm
- D. None of these
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| 5 |
Flow of thermal energy from hot body cold body is called: |
- A. Specific heat
- B. Latent heat
- C. Transfer of heat
- D. Heat capacity
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| 6 |
How does heat reaches form sun to earth through? |
- A. Conduciton
- B. Convection
- C. Radiation
- D. None
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| 7 |
In building central heating system works on the process of: |
- A. Covection
- B. Radiation
- C. Conduction
- D. both a and b
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| 8 |
The bad conductor of Heat is: |
- A. Iron
- B. Copper
- C. Air
- D. Aluminium
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| 9 |
The main source of energy n the universe is: |
- A. Moon
- B. Stars
- C. Sun
- D. Planets
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| 10 |
Leslie cube have faces: |
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