| 1 |
Bio mass is converted into fuel by |
- A. Evaporation
- B. Fermentation
- C. Reflection
- D. Scattering
|
| 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 frictional force is |
- A. Conservative force
- B. Non conservative force
- C. Electric force
- D. Magnetic force
|
| 4 |
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
|
| 5 |
The tides raise in the sea roughly |
- A. Once a day
- B. Twice a day
- C. Three a day
- D. Four time a day
|
| 6 |
Which one is a conservative force |
- A. Elastic spring force
- B. Air resistance
- C. Frictional force
- D. Tension in the spring
|
| 7 |
The dimensions of work are |
- A. MLT<sup>-1</sup>
- B. MLT<sup>-2</sup>
- C. ML<sup>2</sup>T<sup>-2</sup>
- D. ML<sup>-1</sup>T<sup>-1</sup>
|
| 8 |
A body of mass 1.0 Kg dropped from the top of a tower of highest 50 m, what will be its K.E. 10 m below the top |
- A. 400 J
- B. 490 J
- C. 49 J
- D. 98 J
|
| 9 |
By increasing the amount of stretch in spring the force exerted will |
- A. Increase
- B. One watt
- C. One erg
- D. One joule
|
| 10 |
Identity the non conservative force among the following. |
- A. Frictional force
- B. Electrical force
- C. Gravitational force
- D. Elastic restoring force
|
