| 1 |
Conduction on heat occur at ________ rate in materials |
- A. Different
- B. Same
- C. Both A and B
- D. None
|
| 2 |
Leslie's cube is filled with: |
- A. Cold water
- B. Hot water
- C. Mercury
- D. Air
|
| 3 |
Heat radiation obey the laws of: |
- A. Absorption
- B. Reflection
- C. Both A and B
- D. None
|
| 4 |
The device used to stop conduction, convention and radiation: |
- A. Thermometer
- B. Thermo flask
- C. Both
- D. Nil
|
| 5 |
Heat form one of a metal rod a reaches to the other by the process of |
- A. convection
- B. radiation
- C. conduction
- D. both (a) and (b)
|
| 6 |
Both metals and non-metals transfer: |
- A. Electricity
- B. Heat
- C. Both A and B
- D. None of these
|
| 7 |
Shining silvered surface is a best: |
- A. Emitter
- B. Absorber
- C. Reflector
- D. None of these
|
| 8 |
How does heat reaches form sun to earth through? |
- A. Conduciton
- B. Convection
- C. Radiation
- D. None
|
| 9 |
The main source of energy in the unierse is: |
- A. Moon
- B. Stars
- C. Sun
- D. Planets
|
| 10 |
Light from the sun contain thermal radiation of: |
- A. Long wavelength
- B. Short wavelength
- C. Ultra violet rays
- D. Visible light
|