| 1 |
The frictional force is |
- A. Conservative force
- B. Non conservative force
- C. Electric force
- D. Magnetic force
|
| 2 |
Bio mass is converted into fuel by |
- A. Evaporation
- B. Fermentation
- C. Reflection
- D. Scattering
|
| 3 |
No body begins to move or comes to rest of itself was given by |
- A. Newton
- B. Pascal
- C. Bernoulli
- D. Bu Ali Sina
|
| 4 |
When ever the path difference between the waves is integral multiple of half the wavelength, interference will be |
- A. Constructive
- B. Destructive
- C. (-)ve
- D. (+) ve
|
| 5 |
The error in speed of sound calculated by Newton at STP is about. |
- A. 0 %
- B. 14 %
- C. 15 %
- D. 16 %
|
| 6 |
If velocity time graph is parallel to time axis, then acceleration of moving body will be. |
- A. Maximum
- B. Positive
- C. Zero
- D. Negative
|
| 7 |
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
|
| 8 |
The law of conservation of mass gives. |
- A. Beronoulli's
- B. Venturi relation
- C. Torricelli's theorem
- D. Equation of continuity
|
| 9 |
An oil film on water surface shows colour due to. |
- A. Diffraction
- B. Interference
- C. Polarization
- D. Dispersion
|
| 10 |
For a gas obeying Boyle's Law, if the pressure is doubled, the volume becomes. |
- A. Double
- B. Three fold
- C. One half
- D. Remains the same
|