| 1 |
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
|
| 2 |
Two quantities involved in work are |
- A. Force and speed
- B. Force and velocity
- C. Force and displacement
- D. Force and acceleration
|
| 3 |
The tides raise in the sea roughly |
- A. Once a day
- B. Twice a day
- C. Three a day
- D. Four time a day
|
| 4 |
Which one is non renewable source of energy. |
- A. Hydro electric
- B. Bio mass
- C. Tides
- D. Oil
|
| 5 |
Work is negative when angle between F and d is |
- A. 45<sup>o</sup>
- B. <sub>0</sub><sup>o</sup>
- C. 90<sup>o</sup>
- D. 180<sup>o</sup>
|
| 6 |
The unit of energy is same as that of |
- A. Power
- B. Work
- C. Torque
- D. Density
|
| 7 |
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
|
| 8 |
The ability of a body to do work is called its |
- A. Force
- B. Power
- C. Capacity
- D. Energy
|
| 9 |
Which one is renewable source of energy. |
- A. Coal
- B. Uranium
- C. Biomass
- D. Natural gas
|
| 10 |
The dimension of power is |
- A. MLT-1
- B. ML2T-2
- C. ML2T2
- D. ML2T-3
|