| 1 |
Hot igneous rocks, usually in molten or partly molten state are found in the depth of |
- A. 5 km
- B. 10 km
- C. 15 km
- D. 20 km
|
| 2 |
Energy dissipated usually appears as |
- A. P.E.
- B. Heat Energy
- C. Chemical energy
- D. Nuclear Energy
|
| 3 |
Original source of energy for biomass is |
- A. Earth
- B. Star
- C. Moon
- D. Sun
|
| 4 |
Watt -m2 is the unit of |
- A. Energy
- B. Intensity
- C. Power
- D. Work
|
| 5 |
The unit of work in base unit is |
- A. Kg m-1 sec-2
- B. Kgm sec-2
- C. Kgm2 sec-1
- D. Kgm-1 sec-1
|
| 6 |
If a body of mass 5 kg is raised vertically through a distance of 1 m, then work done is. |
- A. 49 J
- B. 4.9 J
- C. 490 J
- D. 0.49 J
|
| 7 |
Which one is renewable source of energy. |
- A. Coal
- B. Uranium
- C. Biomass
- D. Natural gas
|
| 8 |
When the rocket moves away from the earth, the work against gravity |
- A. Remains constant
- B. Varies directly with distance
- C. Varies inversely with distance
- D. Varies inversely with square of distance
|
| 9 |
A body has P.E. = mgh, when it is at height 'h' from the ground. At the point at the distance 'x' below from the top its P.E. with |
- A. mgh
- B. mgx
- C. mg(x-h)
- D. None of these
|
| 10 |
The SI unit of power is |
- A. Joule
- B. Newton
- C. Watt
- D. Kilowatt
|
