1 |
If velocity 'v' of an object is double, then K.E. because. |
- A. Remain same
- B. Sixteen times
- C. Double
- D. Four times
|
2 |
The power needed to lift a mass of 5000 g to height of 1 m in 2 secnd is |
- A. 2.45 watt
- B. 24.5 watt
- C. 245 watt
- D. 2.45 watt
|
3 |
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
|
4 |
Which one is a conservative force |
- A. Elastic spring force
- B. Air resistance
- C. Frictional force
- D. Tension in the spring
|
5 |
Which one is non renewable source of energy. |
- A. Hydro electric
- B. Bio mass
- C. Tides
- D. Oil
|
6 |
Work is a |
- A. Scalar quantity
- B. Vector quantity
- C. Basic quantity
- D. None of these
|
7 |
Work has dimension lime |
- A. Torque
- B. Momentum
- C. Velocity
- D. Power
|
8 |
The work done will be maximum when angle between F and d. |
- A. 180<sup>o</sup>
- B. 0<sup>o</sup>
- C. 90<sup>o</sup>
- D. 60<sup>o</sup>
|
9 |
Bio mass is converted into fuel by |
- A. Evaporation
- B. Fermentation
- C. Reflection
- D. Scattering
|
10 |
The dimensions of work are. |
- A. [MLT-1]
- B. [MLT-2]
- C. [ML2T-2]
- D. [MLT]
|