| 1 |
Which surface is best reflector of heat? |
- A. dull black surface
- B. coloured surface
- C. white surface
- D. shining slivered surface
|
| 2 |
All ________ conduct heat easily: |
- A. Non metals
- B. Gases
- C. Material
- D. Metals
|
| 3 |
Air and water is conductor: |
- A. Poor
- B. Good
- C. Excellent
- D. None of these
|
| 4 |
A Leslie cube is a: |
- A. Metal box
- B. Wooden box
- C. Glass box
- D. None
|
| 5 |
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
|
| 6 |
Leslie's cube is filled with: |
- A. Cold water
- B. Hot water
- C. Mercury
- D. Air
|
| 7 |
Which is expert thermal climber: |
- A. Crow
- B. Sparrow
- C. Hawks
- D. None
|
| 8 |
Thermal conductivity of iron is Wm<sup>-1</sup> K<sup>-1</sup> |
|
| 9 |
The substances through which heat does not conduct: |
- A. Conductors
- B. Bad conductors
- C. Insulators
- D. Both B and C
|
| 10 |
In solid, heat is transferred by: |
- A. Radiation
- B. Conduction
- C. Convection
- D. Absorption
|