| 1 |
Land and sea breezes are the result of: |
- A. Absorption
- B. Radiation
- C. Conduction
- D. Convection
|
| 2 |
Heat radiation obey the laws of: |
- A. Absorption
- B. Reflection
- C. Both A and B
- D. None
|
| 3 |
Which surface is bad emitter: |
- A. White surface
- B. Black surface
- C. Coloured surface
- D. Silver surface
|
| 4 |
The rate at which various surface absorb heat depends upon: |
- A. Nature of surface
- B. Nature of liquid
- C. Radiation
- D. Emission & absorption
|
| 5 |
The sun's surface temperature is : |
- A. 3,000 K
- B. 3,030 k
- C. 6,000 K
- D. 600 K
|
| 6 |
The bad conductor of Heat is: |
- A. Iron
- B. Copper
- C. Air
- D. Aluminium
|
| 7 |
Feathers of bird give good thermal: |
- A. Conduction
- B. Insulation
- C. Convection
- D. None of these
|
| 8 |
Leslie's cube is filled with |
- A. Cold water
- B. Hot water
- C. Mercury
- D. Air
|
| 9 |
All bodies absorb or emit energy by |
- A. convection
- B. radiation
- C. conduction
- D. both (a) & (c)
|
| 10 |
The transfer of heat by vibrating molecules in solids : |
- A. Conduciton
- B. Radiation
- C. Convection
- D. None
|