| 1 |
Formula of Power: |
- A. P = wt
- B. P = w/t
- C. P = t/w
- D. P = w/t<sup>2</sup>
|
| 2 |
Which pair of physical quantities has same SI unit? |
- A. energy , power
- B. power , work
- C. energy , work
- D. work , momentum
|
| 3 |
The unit of kinetic energy is: |
|
| 4 |
According to law of conservation of energy increases in P.E is equal to: |
- A. Increase K.E
- B. Decrease in K.E
- C. Decrease in P.E
- D. None
|
| 5 |
One liter is equal to: |
- A. 1 kgcm-3
- B. 1000 cm-3
- C. 10-6 m3
- D. 10-3 m3
|
| 6 |
The S.I unit of power is : |
- A. j/s2
- B. J
- C. W
- D. J/M2
|
| 7 |
When a body is lifted through height h, the work done on it appears in the form of its |
- A. Kinetic energy
- B. Potential eneger
- C. Elastic potential energy
- D. Geothermal energy
|
| 8 |
In Einstein's mass-energy equation ,c is the |
- A. Speed of sound
- B. Speed of light
- C. Speed of electron
- D. Speed of Earth
|
| 9 |
1 MJ= |
- A. 10<sup>3</sup> J
- B. 10<sup>6</sup>J
- C. 10<sup>7</sup>J
- D. 10<sup>-3</sup>J
|
| 10 |
The work done will be zero when the angle between the force and the distance is: |
- A. 45<sup>o</sup>
- B. 90<sup>o</sup>
- C. 60<sup>o</sup>
- D. 180<sup>o</sup>
|
